202012322122 has 16 divisors (see below), whose sum is σ = 327125481480. Its totient is φ = 93008489472.

The previous prime is 202012322119. The next prime is 202012322129. The reversal of 202012322122 is 221223210202.

It can be written as a sum of positive squares in 4 ways, for example, as 131813289721 + 70199032401 = 363061^2 + 264951^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 202012322122.

It is not an unprimeable number, because it can be changed into a prime (202012322129) 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, 9487783 + ... + 9509050.

Almost surely, 2^202012322122 is an apocalyptic number.

202012322122 is a deficient number, since it is larger than the sum of its proper divisors (125113159358).

202012322122 is a wasteful number, since it uses less digits than its factorization.

202012322122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18997257.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 202012322122 its reverse (221223210202), we get a palindrome (423235532324).

The spelling of 202012322122 in words is "two hundred two billion, twelve million, three hundred twenty-two thousand, one hundred twenty-two".