202120320122 has 32 divisors (see below), whose sum is σ = 348112114560. Its totient is φ = 86218168320.

The previous prime is 202120320079. The next prime is 202120320163. The reversal of 202120320122 is 221023021202.

It is a self number, because there is not a number n which added to its sum of digits gives 202120320122.

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, 17285654 + ... + 17297342.

It is an arithmetic number, because the mean of its divisors is an integer number (10878503580).

Almost surely, 2^202120320122 is an apocalyptic number.

202120320122 is a deficient number, since it is larger than the sum of its proper divisors (145991794438).

202120320122 is a wasteful number, since it uses less digits than its factorization.

202120320122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17366.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 202120320122 its reverse (221023021202), we get a palindrome (423143341324).

The spelling of 202120320122 in words is "two hundred two billion, one hundred twenty million, three hundred twenty thousand, one hundred twenty-two".