19802180222 has 12 divisors (see below), whose sum is σ = 32649049608. Its totient is φ = 9000990900.

The previous prime is 19802180221. The next prime is 19802180249. The reversal of 19802180222 is 22208120891.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19802180221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40913354 + ... + 40913837.

It is an arithmetic number, because the mean of its divisors is an integer number (2720754134).

Almost surely, 2^19802180222 is an apocalyptic number.

19802180222 is a deficient number, since it is larger than the sum of its proper divisors (12846869386).

19802180222 is a wasteful number, since it uses less digits than its factorization.

19802180222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81827215 (or 81827204 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The spelling of 19802180222 in words is "nineteen billion, eight hundred two million, one hundred eighty thousand, two hundred twenty-two".