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12212023000020 = 223523291564319507
BaseRepresentation
bin1011000110110101010101…
…0010101111101111010100
31121020110100212202110201220
42301231111102233233110
53100040210342000040
641550043110450340
72400201212535504
oct261552522575724
947213325673656
1012212023000020
1139890a9686958
1214529319639b0
136a778686734c
143030ca787a04
151629e1b5a2d0
hexb1b554afbd4

12212023000020 has 192 divisors, whose sum is σ = 36914954065920. Its totient is φ = 3007192269312.

The previous prime is 12212023000019. The next prime is 12212023000171. The reversal of 12212023000020 is 2000032021221.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 626023107 + ... + 626042613.

It is an arithmetic number, because the mean of its divisors is an integer number (192265385760).

Almost surely, 212212023000020 is an apocalyptic number.

12212023000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12212023000020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18457477032960).

12212023000020 is an abundant number, since it is smaller than the sum of its proper divisors (24702931065900).

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

12212023000020 is a wasteful number, since it uses less digits than its factorization.

12212023000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35214 (or 35212 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12212023000020 its reverse (2000032021221), we get a palindrome (14212055021241).

The spelling of 12212023000020 in words is "twelve trillion, two hundred twelve billion, twenty-three million, twenty", and thus it is an aban number.