202101210012122 has 16 divisors (see below), whose sum is σ = 304454187940032. Its totient is φ = 100616484380640.

The previous prime is 202101210012101. The next prime is 202101210012139. The reversal of 202101210012122 is 221210012101202.

It is a self number, because there is not a number n which added to its sum of digits gives 202101210012122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128499347 + ... + 130062617.

It is an arithmetic number, because the mean of its divisors is an integer number (19028386746252).

Almost surely, 2^{202101210012122} is an apocalyptic number.

202101210012122 is a deficient number, since it is larger than the sum of its proper divisors (102352977927910).

202101210012122 is a wasteful number, since it uses less digits than its factorization.

202101210012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840933.

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

Adding to 202101210012122 its reverse (221210012101202), we get a palindrome (423311222113324).

The spelling of 202101210012122 in words is "two hundred two trillion, one hundred one billion, two hundred ten million, twelve thousand, one hundred twenty-two".