212012110010121 has 32 divisors (see below), whose sum is σ = 301486979646720. Its totient is φ = 132226817758464.

The previous prime is 212012110010033. The next prime is 212012110010123. The reversal of 212012110010121 is 121010011210212.

It is a happy number.

It is not a de Polignac number, because 212012110010121 - 2²⁹ = 212011573139209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212012110010121.

It is not an unprimeable number, because it can be changed into a prime (212012110010123) 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, 90282886 + ... + 92601423.

It is an arithmetic number, because the mean of its divisors is an integer number (9421468113960).

Almost surely, 2^{212012110010121} is an apocalyptic number.

It is an amenable number.

212012110010121 is a deficient number, since it is larger than the sum of its proper divisors (89474869636599).

212012110010121 is a wasteful number, since it uses less digits than its factorization.

212012110010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182884705.

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

Adding to 212012110010121 its reverse (121010011210212), we get a palindrome (333022121220333).

The spelling of 212012110010121 in words is "two hundred twelve trillion, twelve billion, one hundred ten million, ten thousand, one hundred twenty-one".