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222012101201020 = 225132553733437471
BaseRepresentation
bin110010011110101100111000…
…011011011000110001111100
31002010002011001001111010020121
4302132230320123120301330
5213044421240401413040
62104102541251224324
764522562555345104
oct6236547033306174
91063064031433217
10222012101201020
1164815892314649
1220a975235a80a4
1396b5860c12b50
143cb762b974204
151aa009e4b3c4a
hexc9eb386d8c7c

222012101201020 has 48 divisors (see below), whose sum is σ = 502108582042368. Its totient is φ = 81970486456320.

The previous prime is 222012101200997. The next prime is 222012101201029. The reversal of 222012101201020 is 20102101210222.

It is a happy number.

It is a super-2 number, since 2×2220121012010202 (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222012101200985 and 222012101201003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222012101201029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10079116 + ... + 23358355.

It is an arithmetic number, because the mean of its divisors is an integer number (10460595459216).

Almost surely, 2222012101201020 is an apocalyptic number.

222012101201020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222012101201020 is an abundant number, since it is smaller than the sum of its proper divisors (280096480841348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222012101201020 is a wasteful number, since it uses less digits than its factorization.

222012101201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33463030 (or 33463028 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222012101201020 its reverse (20102101210222), we get a palindrome (242114202411242).

The spelling of 222012101201020 in words is "two hundred twenty-two trillion, twelve billion, one hundred one million, two hundred one thousand, twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 25537 51074 102148 127685 255370 331981 510740 663962 1327924 1659905 3319810 6639620 33437471 66874942 133749884 167187355 334374710 434687123 668749420 869374246 1738748492 2173435615 4346871230 8693742460 853892696927 1707785393854 3415570787708 4269463484635 8538926969270 11100605060051 17077853938540 22201210120102 44402420240204 55503025300255 111006050600510 222012101201020