202121165012 has 48 divisors (see below), whose sum is σ = 387382528512. Its totient is φ = 91711656960.

The previous prime is 202121164933. The next prime is 202121165041. The reversal of 202121165012 is 210561121202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1225733 + ... + 1380819.

It is an arithmetic number, because the mean of its divisors is an integer number (8070469344).

Almost surely, 2^202121165012 is an apocalyptic number.

It is an amenable number.

202121165012 is a deficient number, since it is larger than the sum of its proper divisors (185261363500).

202121165012 is a wasteful number, since it uses less digits than its factorization.

202121165012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155528 (or 155526 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 202121165012 its reverse (210561121202), we get a palindrome (412682286214).

The spelling of 202121165012 in words is "two hundred two billion, one hundred twenty-one million, one hundred sixty-five thousand, twelve".