201021020212112 has 20 divisors (see below), whose sum is σ = 389509037766156. Its totient is φ = 100502558853120.

The previous prime is 201021020212109. The next prime is 201021020212151. The reversal of 201021020212112 is 211212020120102.

It can be written as a sum of positive squares in 2 ways, for example, as 16218855325696 + 184802164886416 = 4027264^2 + 13594196^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 496744733 + ... + 497149244.

Almost surely, 2^{201021020212112} is an apocalyptic number.

It is an amenable number.

201021020212112 is a deficient number, since it is larger than the sum of its proper divisors (188488017554044).

201021020212112 is a wasteful number, since it uses less digits than its factorization.

201021020212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993906626 (or 993906620 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 201021020212112 its reverse (211212020120102), we get a palindrome (412233040332214).

The spelling of 201021020212112 in words is "two hundred one trillion, twenty-one billion, twenty million, two hundred twelve thousand, one hundred twelve".