201012112000021 has 16 divisors (see below), whose sum is σ = 229783506422400. Its totient is φ = 172254566352960.

The previous prime is 201012111999947. The next prime is 201012112000079. The reversal of 201012112000021 is 120000211210102.

It is not a de Polignac number, because 201012112000021 - 2⁹ = 201012111999509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201012111999965 and 201012112000010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201012112000081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 615401655 + ... + 615728203.

It is an arithmetic number, because the mean of its divisors is an integer number (14361469151400).

Almost surely, 2^{201012112000021} is an apocalyptic number.

It is an amenable number.

201012112000021 is a deficient number, since it is larger than the sum of its proper divisors (28771394422379).

201012112000021 is a wasteful number, since it uses less digits than its factorization.

201012112000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347484.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 201012112000021 its reverse (120000211210102), we get a palindrome (321012323210123).

The spelling of 201012112000021 in words is "two hundred one trillion, twelve billion, one hundred twelve million, twenty-one", and thus it is an aban number.