201021110211212 has 12 divisors (see below), whose sum is σ = 351787042853400. Its totient is φ = 100510526538816.

The previous prime is 201021110211203. The next prime is 201021110211329. The reversal of 201021110211212 is 212112011120102.

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, 21102539 + ... + 29109437.

It is an arithmetic number, because the mean of its divisors is an integer number (29315586904450).

Almost surely, 2^{201021110211212} is an apocalyptic number.

It is an amenable number.

201021110211212 is a deficient number, since it is larger than the sum of its proper divisors (150765932642188).

201021110211212 is a wasteful number, since it uses less digits than its factorization.

201021110211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14283400 (or 14283398 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 201021110211212 its reverse (212112011120102), we get a palindrome (413133121331314).

The spelling of 201021110211212 in words is "two hundred one trillion, twenty-one billion, one hundred ten million, two hundred eleven thousand, two hundred twelve".