220199999938 has 4 divisors (see below), whose sum is σ = 330299999910. Its totient is φ = 110099999968.

The previous prime is 220199999923. The next prime is 220199999983. The reversal of 220199999938 is 839999991022.

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., 124865409769 + 95334590169 = 353363^2 + 308763^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55049999983 + ... + 55049999986.

Almost surely, 2^220199999938 is an apocalyptic number.

220199999938 is a deficient number, since it is larger than the sum of its proper divisors (110099999972).

220199999938 is a wasteful number, since it uses less digits than its factorization.

220199999938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110099999971.

The product of its (nonzero) digits is 51018336, while the sum is 70.

The spelling of 220199999938 in words is "two hundred twenty billion, one hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred thirty-eight".