201021210212112 has 50 divisors (see below), whose sum is σ = 581813703325998. Its totient is φ = 67007070070272.

The previous prime is 201021210212099. The next prime is 201021210212143. The reversal of 201021210212112 is 211212012120102.

201021210212112 is a `hidden beast` number, since 201 + 0 + 21 + 210 + 21 + 211 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 197697210314256 + 3323999897856 = 14060484^2 + 1823184^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 77554477953 + ... + 77554480544.

Almost surely, 2^{201021210212112} is an apocalyptic number.

It is an amenable number.

201021210212112 is an abundant number, since it is smaller than the sum of its proper divisors (380792493113886).

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

201021210212112 is a wasteful number, since it uses less digits than its factorization.

201021210212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155108958517 (or 155108958502 counting only the distinct ones).

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

Adding to 201021210212112 its reverse (211212012120102), we get a palindrome (412233222332214).

The spelling of 201021210212112 in words is "two hundred one trillion, twenty-one billion, two hundred ten million, two hundred twelve thousand, one hundred twelve".