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12021211202010 = 2351344712979877
BaseRepresentation
bin1010111011101110100000…
…0001100000000111011010
31120120012211212200210211220
42232323220001200013122
53033423420031431020
641322245043432510
72350334551161423
oct256735001400732
946505755623756
1012021211202010
11391519237091a
12142195b385736
13692797cb16aa
142d7b88aac64a
1515ca7518b240
hexaeee80601da

12021211202010 has 32 divisors (see below), whose sum is σ = 28851131117952. Its totient is φ = 3205631405760.

The previous prime is 12021211201991. The next prime is 12021211202023. The reversal of 12021211202010 is 1020211212021.

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

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, 2544192 + ... + 5524068.

It is an arithmetic number, because the mean of its divisors is an integer number (901597847436).

Almost surely, 212021211202010 is an apocalyptic number.

12021211202010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12021211202010 is an abundant number, since it is smaller than the sum of its proper divisors (16829919915942).

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

12021211202010 is a wasteful number, since it uses less digits than its factorization.

12021211202010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3114358.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12021211202010 its reverse (1020211212021), we get a palindrome (13041422414031).

The spelling of 12021211202010 in words is "twelve trillion, twenty-one billion, two hundred eleven million, two hundred two thousand, ten".

Divisors: 1 2 3 5 6 10 15 30 134471 268942 403413 672355 806826 1344710 2017065 2979877 4034130 5959754 8939631 14899385 17879262 29798770 44698155 89396310 400707040067 801414080134 1202121120201 2003535200335 2404242240402 4007070400670 6010605601005 12021211202010