2202157601218 has 4 divisors (see below), whose sum is σ = 3303236401830. Its totient is φ = 1101078800608.

The previous prime is 2202157601183. The next prime is 2202157601219. The reversal of 2202157601218 is 8121067512022.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 1415702567889 + 786455033329 = 1189833^2 + 886823^2 .

It is not an unprimeable number, because it can be changed into a prime (2202157601219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550539400303 + ... + 550539400306.

Almost surely, 2^{2202157601218} is an apocalyptic number.

2202157601218 is a deficient number, since it is larger than the sum of its proper divisors (1101078800612).

2202157601218 is a wasteful number, since it uses less digits than its factorization.

2202157601218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101078800611.

The product of its (nonzero) digits is 26880, while the sum is 37.

The spelling of 2202157601218 in words is "two trillion, two hundred two billion, one hundred fifty-seven million, six hundred one thousand, two hundred eighteen".