202157222 has 4 divisors (see below), whose sum is σ = 303235836. Its totient is φ = 101078610.

The previous prime is 202157171. The next prime is 202157227. The reversal of 202157222 is 222751202.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202157227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50539304 + ... + 50539307.

It is an arithmetic number, because the mean of its divisors is an integer number (75808959).

Almost surely, 2^202157222 is an apocalyptic number.

202157222 is a deficient number, since it is larger than the sum of its proper divisors (101078614).

202157222 is a wasteful number, since it uses less digits than its factorization.

202157222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101078613.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 202157222 is about 14218.2003783883. The cubic root of 202157222 is about 586.8986181781.

The spelling of 202157222 in words is "two hundred two million, one hundred fifty-seven thousand, two hundred twenty-two".