220200209979 has 16 divisors (see below), whose sum is σ = 312145996032. Its totient is φ = 137768135648.

The previous prime is 220200209969. The next prime is 220200209987. The reversal of 220200209979 is 979902002022.

It is a cyclic number.

It is not a de Polignac number, because 220200209979 - 2⁵ = 220200209947 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 220200209979.

It is not an unprimeable number, because it can be changed into a prime (220200209969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30103017 + ... + 30110330.

It is an arithmetic number, because the mean of its divisors is an integer number (19509124752).

Almost surely, 2^220200209979 is an apocalyptic number.

220200209979 is a deficient number, since it is larger than the sum of its proper divisors (91945786053).

220200209979 is a wasteful number, since it uses less digits than its factorization.

220200209979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60213426.

The product of its (nonzero) digits is 81648, while the sum is 42.

The spelling of 220200209979 in words is "two hundred twenty billion, two hundred million, two hundred nine thousand, nine hundred seventy-nine".