220002102010978 has 16 divisors (see below), whose sum is σ = 393544132790400. Its totient is φ = 90187197097536.

The previous prime is 220002102010921. The next prime is 220002102010979. The reversal of 220002102010978 is 879010201200022.

It is not an unprimeable number, because it can be changed into a prime (220002102010979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341618170503 + ... + 341618171146.

It is an arithmetic number, because the mean of its divisors is an integer number (24596508299400).

Almost surely, 2^{220002102010978} is an apocalyptic number.

220002102010978 is a deficient number, since it is larger than the sum of its proper divisors (173542030779422).

220002102010978 is a wasteful number, since it uses less digits than its factorization.

220002102010978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683236341681.

The product of its (nonzero) digits is 8064, while the sum is 34.

The spelling of 220002102010978 in words is "two hundred twenty trillion, two billion, one hundred two million, ten thousand, nine hundred seventy-eight".