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222202221212020 = 22572546362331961
BaseRepresentation
bin110010100001011101111100…
…011101101011000101110100
31002010202022202211211100202111
4302201131330131223011310
5213111030122112241040
62104330142523020404
764542403116645340
oct6241357435530564
91063668684740674
10222202221212020
116488948408a885
1220b0834236a704
1396ca76c37378a
143cc2905812620
151aa4eca383dea
hexca177c76b174

222202221212020 has 48 divisors (see below), whose sum is σ = 533306283003648. Its totient is φ = 76180625544960.

The previous prime is 222202221211979. The next prime is 222202221212033. The reversal of 222202221212020 is 20212122202222.

It is a super-2 number, since 2×2222022212120202 (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222202221211982 and 222202221212000.

It is a congruent number.

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, 27601161 + ... + 34730800.

It is an arithmetic number, because the mean of its divisors is an integer number (11110547562576).

Almost surely, 2222202221212020 is an apocalyptic number.

222202221212020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222202221212020 is an abundant number, since it is smaller than the sum of its proper divisors (311104061791628).

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

222202221212020 is a wasteful number, since it uses less digits than its factorization.

222202221212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62357440 (or 62357438 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 222202221212020 its reverse (20212122202222), we get a palindrome (242414343414242).

The spelling of 222202221212020 in words is "two hundred twenty-two trillion, two hundred two billion, two hundred twenty-one million, two hundred twelve thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 25463 50926 101852 127315 178241 254630 356482 509260 712964 891205 1782410 3564820 62331961 124663922 249327844 311659805 436323727 623319610 872647454 1246639220 1745294908 2181618635 4363237270 8726474540 1587158722943 3174317445886 6348634891772 7935793614715 11110111060601 15871587229430 22220222121202 31743174458860 44440444242404 55550555303005 111101110606010 222202221212020