202122151 has 24 divisors (see below), whose sum is σ = 256040960. Its totient is φ = 156174480.

The previous prime is 202122149. The next prime is 202122203. The reversal of 202122151 is 151221202.

It is a happy number.

It is not a de Polignac number, because 202122151 - 2¹ = 202122149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202125151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106630 + ... + 108508.

Almost surely, 2^202122151 is an apocalyptic number.

202122151 is a deficient number, since it is larger than the sum of its proper divisors (53918809).

202122151 is a wasteful number, since it uses less digits than its factorization.

202122151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2035 (or 2024 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 202122151 is about 14216.9670112862. The cubic root of 202122151 is about 586.8646770841.

Adding to 202122151 its reverse (151221202), we get a palindrome (353343353).

The spelling of 202122151 in words is "two hundred two million, one hundred twenty-two thousand, one hundred fifty-one".