201021102212 has 24 divisors (see below), whose sum is σ = 402270865920. Its totient is φ = 86102902080.

The previous prime is 201021102211. The next prime is 201021102239. The reversal of 201021102212 is 212201120102.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (201021102211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1991489 + ... + 2089992.

It is an arithmetic number, because the mean of its divisors is an integer number (16761286080).

Almost surely, 2^201021102212 is an apocalyptic number.

It is an amenable number.

201021102212 is an abundant number, since it is smaller than the sum of its proper divisors (201249763708).

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

201021102212 is a wasteful number, since it uses less digits than its factorization.

201021102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4083251 (or 4083249 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 201021102212 its reverse (212201120102), we get a palindrome (413222222314).

The spelling of 201021102212 in words is "two hundred one billion, twenty-one million, one hundred two thousand, two hundred twelve".