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120213210220 = 22517957415849
BaseRepresentation
bin110111111110101000…
…1000000010001101100
3102111021212100210221021
41233331101000101230
53432144040211340
6131120350143524
711453665266355
oct1577521002154
9374255323837
10120213210220
1146a89250114
121b36b1b1ba4
13b44a41846c
145b657a6d2c
1531d8a6de4a
hex1bfd44046c

120213210220 has 48 divisors (see below), whose sum is σ = 253945692000. Its totient is φ = 47800148480.

The previous prime is 120213210217. The next prime is 120213210233. The reversal of 120213210220 is 22012312021.

It is a happy number.

It is a super-2 number, since 2×1202132102202 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120213210194 and 120213210203.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20549856 + ... + 20555704.

It is an arithmetic number, because the mean of its divisors is an integer number (5290535250).

Almost surely, 2120213210220 is an apocalyptic number.

120213210220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120213210220 is an abundant number, since it is smaller than the sum of its proper divisors (133732481780).

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

120213210220 is a wasteful number, since it uses less digits than its factorization.

120213210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11778 (or 11776 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 120213210220 its reverse (22012312021), we get a palindrome (142225522241).

The spelling of 120213210220 in words is "one hundred twenty billion, two hundred thirteen million, two hundred ten thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 179 358 716 895 1790 3580 5741 5849 11482 11698 22964 23396 28705 29245 57410 58490 114820 116980 1027639 1046971 2055278 2093942 4110556 4187884 5138195 5234855 10276390 10469710 20552780 20939420 33579109 67158218 134316436 167895545 335791090 671582180 6010660511 12021321022 24042642044 30053302555 60106605110 120213210220