202021033122 has 32 divisors (see below), whose sum is σ = 448951723200. Its totient is φ = 67337930304.

The previous prime is 202021033099. The next prime is 202021033127. The reversal of 202021033122 is 221330120202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 202021033095 and 202021033104.

It is not an unprimeable number, because it can be changed into a prime (202021033127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2089453 + ... + 2183999.

It is an arithmetic number, because the mean of its divisors is an integer number (14029741350).

Almost surely, 2^202021033122 is an apocalyptic number.

202021033122 is an abundant number, since it is smaller than the sum of its proper divisors (246930690078).

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

202021033122 is a wasteful number, since it uses less digits than its factorization.

202021033122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134127 (or 134121 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 202021033122 its reverse (221330120202), we get a palindrome (423351153324).

The spelling of 202021033122 in words is "two hundred two billion, twenty-one million, thirty-three thousand, one hundred twenty-two".