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210211220120 = 235112797170809
BaseRepresentation
bin1100001111000110010…
…0001010101010011000
3202002120222111102011012
43003301210022222120
511421003033020440
6240323015553052
721121141614026
oct3036144125230
9662528442135
10210211220120
1181171831aa0
12348a738b788
1316a909c1965
14a262307716
155704b55e65
hex30f190aa98

210211220120 has 64 divisors (see below), whose sum is σ = 516160490400. Its totient is φ = 76412666880.

The previous prime is 210211220117. The next prime is 210211220179. The reversal of 210211220120 is 21022112012.

It is a junction number, because it is equal to n+sod(n) for n = 210211220095 and 210211220104.

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, 1145276 + ... + 1316084.

Almost surely, 2210211220120 is an apocalyptic number.

210211220120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210211220120 is an abundant number, since it is smaller than the sum of its proper divisors (305949270280).

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

210211220120 is a wasteful number, since it uses less digits than its factorization.

210211220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173628 (or 173624 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 210211220120 its reverse (21022112012), we get a palindrome (231233332132).

The spelling of 210211220120 in words is "two hundred ten billion, two hundred eleven million, two hundred twenty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 2797 5594 11188 13985 22376 27970 30767 55940 61534 111880 123068 153835 170809 246136 307670 341618 615340 683236 854045 1230680 1366472 1708090 1878899 3416180 3757798 6832360 7515596 9394495 15031192 18788990 37577980 75155960 477752773 955505546 1911011092 2388763865 3822022184 4777527730 5255280503 9555055460 10510561006 19110110920 21021122012 26276402515 42042244024 52552805030 105105610060 210211220120