202121121202122 has 16 divisors (see below), whose sum is σ = 404243218173600. Its totient is φ = 67373544439152.

The previous prime is 202121121202097. The next prime is 202121121202159. The reversal of 202121121202122 is 221202121121202.

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, 37950372 + ... + 42947327.

It is an arithmetic number, because the mean of its divisors is an integer number (25265201135850).

Almost surely, 2^{202121121202122} is an apocalyptic number.

202121121202122 is an abundant number, since it is smaller than the sum of its proper divisors (202122096971478).

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

202121121202122 is a wasteful number, since it uses less digits than its factorization.

202121121202122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81314117.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 202121121202122 its reverse (221202121121202), we get a palindrome (423323242323324).

The spelling of 202121121202122 in words is "two hundred two trillion, one hundred twenty-one billion, one hundred twenty-one million, two hundred two thousand, one hundred twenty-two".