21112012000002 has 64 divisors (see below), whose sum is σ = 52656713478144. Its totient is φ = 5482204640640.

The previous prime is 21112011999989. The next prime is 21112012000019. The reversal of 21112012000002 is 20000021021112.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4210363 + ... + 7742814.

It is an arithmetic number, because the mean of its divisors is an integer number (822761148096).

Almost surely, 2^{21112012000002} is an apocalyptic number.

21112012000002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21112012000002 is an abundant number, since it is smaller than the sum of its proper divisors (31544701478142).

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

21112012000002 is a wasteful number, since it uses less digits than its factorization.

21112012000002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11957023.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21112012000002 its reverse (20000021021112), we get a palindrome (41112033021114).

The spelling of 21112012000002 in words is "twenty-one trillion, one hundred twelve billion, twelve million, two", and thus it is an aban number.