212012100112101 has 32 divisors (see below), whose sum is σ = 285834006678528. Its totient is φ = 139768252254720.

The previous prime is 212012100112049. The next prime is 212012100112139. The reversal of 212012100112101 is 101211001210212.

It is a happy number.

It is not a de Polignac number, because 212012100112101 - 2³³ = 212003510177509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212012100112801) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2321314006 + ... + 2321405336.

It is an arithmetic number, because the mean of its divisors is an integer number (8932312708704).

Almost surely, 2^{212012100112101} is an apocalyptic number.

It is an amenable number.

212012100112101 is a deficient number, since it is larger than the sum of its proper divisors (73821906566427).

212012100112101 is a wasteful number, since it uses less digits than its factorization.

212012100112101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97961.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 212012100112101 its reverse (101211001210212), we get a palindrome (313223101322313).

The spelling of 212012100112101 in words is "two hundred twelve trillion, twelve billion, one hundred million, one hundred twelve thousand, one hundred one".