201021012112 has 20 divisors (see below), whose sum is σ = 391517369856. Its totient is φ = 99984271520.

The previous prime is 201021012103. The next prime is 201021012221. The reversal of 201021012112 is 211210120102.

It is a junction number, because it is equal to n+sod(n) for n = 201021012092 and 201021012101.

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, 32886508 + ... + 32892619.

Almost surely, 2^201021012112 is an apocalyptic number.

It is an amenable number.

201021012112 is a deficient number, since it is larger than the sum of its proper divisors (190496357744).

201021012112 is a wasteful number, since it uses less digits than its factorization.

201021012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65779326 (or 65779320 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 201021012112 its reverse (211210120102), we get a palindrome (412231132214).

The spelling of 201021012112 in words is "two hundred one billion, twenty-one million, twelve thousand, one hundred twelve".