20022200979 has 32 divisors (see below), whose sum is σ = 29991185664. Its totient is φ = 11774782080.

The previous prime is 20022200977. The next prime is 20022201013. The reversal of 20022200979 is 97900222002.

It is not a de Polignac number, because 20022200979 - 2¹ = 20022200977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (20022200977) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 433452 + ... + 477414.

It is an arithmetic number, because the mean of its divisors is an integer number (937224552).

Almost surely, 2^20022200979 is an apocalyptic number.

20022200979 is a deficient number, since it is larger than the sum of its proper divisors (9968984685).

20022200979 is a wasteful number, since it uses less digits than its factorization.

20022200979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44387.

The product of its (nonzero) digits is 9072, while the sum is 33.

The spelling of 20022200979 in words is "twenty billion, twenty-two million, two hundred thousand, nine hundred seventy-nine".