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12220122120 = 2335401253951
BaseRepresentation
bin10110110000110000…
…00100010000001000
31011112122022112010120
423120120010100020
5200011322401440
65340331343240
7611553216123
oct133030042010
934478275116
1012220122120
115200a38688
1224505b1b20
1311c99459bb
1483cd5b3ba
154b7c51dd0
hex2d8604408

12220122120 has 64 divisors (see below), whose sum is σ = 36751933440. Its totient is φ = 3250560000.

The previous prime is 12220122113. The next prime is 12220122133. The reversal of 12220122120 is 2122102221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12220122120.

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, 78856 + ... + 175095.

It is an arithmetic number, because the mean of its divisors is an integer number (574248960).

Almost surely, 212220122120 is an apocalyptic number.

12220122120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220122120 is an abundant number, since it is smaller than the sum of its proper divisors (24531811320).

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

12220122120 is a wasteful number, since it uses less digits than its factorization.

12220122120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254366 (or 254362 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12220122120 its reverse (2122102221), we get a palindrome (14342224341).

The spelling of 12220122120 in words is "twelve billion, two hundred twenty million, one hundred twenty-two thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 401 802 1203 1604 2005 2406 3208 4010 4812 6015 8020 9624 12030 16040 24060 48120 253951 507902 761853 1015804 1269755 1523706 2031608 2539510 3047412 3809265 5079020 6094824 7618530 10158040 15237060 30474120 101834351 203668702 305503053 407337404 509171755 611006106 814674808 1018343510 1222012212 1527515265 2036687020 2444024424 3055030530 4073374040 6110061060 12220122120