202022210121 has 32 divisors (see below), whose sum is σ = 278388109440. Its totient is φ = 130215891456.

The previous prime is 202022210029. The next prime is 202022210147. The reversal of 202022210121 is 121012220202.

It is not a de Polignac number, because 202022210121 - 2³¹ = 199874726473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 202022210121.

It is not an unprimeable number, because it can be changed into a prime (202022211121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37291405 + ... + 37296821.

It is an arithmetic number, because the mean of its divisors is an integer number (8699628420).

Almost surely, 2^202022210121 is an apocalyptic number.

It is an amenable number.

202022210121 is a deficient number, since it is larger than the sum of its proper divisors (76365899319).

202022210121 is a wasteful number, since it uses less digits than its factorization.

202022210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7513.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 202022210121 its reverse (121012220202), we get a palindrome (323034430323).

The spelling of 202022210121 in words is "two hundred two billion, twenty-two million, two hundred ten thousand, one hundred twenty-one".