21112012000001 has 12 divisors (see below), whose sum is σ = 22861078531200. Its totient is φ = 19487889635760.

The previous prime is 21112011999989. The next prime is 21112012000019. The reversal of 21112012000001 is 10000021021112.

It is not a de Polignac number, because 21112012000001 - 2⁶ = 21112011999937 is a prime.

It is a super-6 number, since 6×21112012000001⁶ (a number of 81 digits) contains 666666 as substring.

It is not an unprimeable number, because it can be changed into a prime (21112012000081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37951496 + ... + 38503766.

It is an arithmetic number, because the mean of its divisors is an integer number (1905089877600).

Almost surely, 2^{21112012000001} is an apocalyptic number.

It is an amenable number.

21112012000001 is a deficient number, since it is larger than the sum of its proper divisors (1749066531199).

21112012000001 is a wasteful number, since it uses less digits than its factorization.

21112012000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778496 (or 778483 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 21112012000001 its reverse (10000021021112), we get a palindrome (31112033021113).

The spelling of 21112012000001 in words is "twenty-one trillion, one hundred twelve billion, twelve million, one", and thus it is an aban number.