212012112121110 has 96 divisors (see below), whose sum is σ = 657670225396320. Its totient is φ = 48459911338944.

The previous prime is 212012112121097. The next prime is 212012112121133. The reversal of 212012112121110 is 11121211210212.

It is a happy number.

212012112121110 is a `hidden beast` number, since 21 + 201 + 211 + 2 + 121 + 110 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8012538249 + ... + 8012564708.

It is an arithmetic number, because the mean of its divisors is an integer number (6850731514545).

Almost surely, 2^{212012112121110} is an apocalyptic number.

212012112121110 is an abundant number, since it is smaller than the sum of its proper divisors (445658113275210).

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

212012112121110 is a wasteful number, since it uses less digits than its factorization.

212012112121110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16025102987 (or 16025102974 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 212012112121110 its reverse (11121211210212), we get a palindrome (223133323331322).

The spelling of 212012112121110 in words is "two hundred twelve trillion, twelve billion, one hundred twelve million, one hundred twenty-one thousand, one hundred ten".