212012112202101 has 12 divisors (see below), whose sum is σ = 306253942426380. Its totient is φ = 141334842841920.

The previous prime is 212012112202031. The next prime is 212012112202103. The reversal of 212012112202101 is 101202211210212.

212012112202101 is a `hidden beast` number, since 2 + 1 + 20 + 1 + 211 + 220 + 210 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 23769047373201 + 188243064828900 = 4875351^2 + 13720170^2 .

It is not a de Polignac number, because 212012112202101 - 2¹³ = 212012112193909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212012112202103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 546903210 + ... + 547290731.

It is an arithmetic number, because the mean of its divisors is an integer number (25521161868865).

Almost surely, 2^{212012112202101} is an apocalyptic number.

It is an amenable number.

212012112202101 is a deficient number, since it is larger than the sum of its proper divisors (94241830224279).

212012112202101 is a wasteful number, since it uses less digits than its factorization.

212012112202101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094215476 (or 1094215473 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 212012112202101 its reverse (101202211210212), we get a palindrome (313214323412313).

The spelling of 212012112202101 in words is "two hundred twelve trillion, twelve billion, one hundred twelve million, two hundred two thousand, one hundred one".