20222439279 has 16 divisors (see below), whose sum is σ = 30817160448. Its totient is φ = 11554924032.

The previous prime is 20222439277. The next prime is 20222439283. The reversal of 20222439279 is 97293422202.

It is not a de Polignac number, because 20222439279 - 2¹ = 20222439277 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20222439279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222439277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 531324 + ... + 568110.

It is an arithmetic number, because the mean of its divisors is an integer number (1926072528).

Almost surely, 2^20222439279 is an apocalyptic number.

20222439279 is a deficient number, since it is larger than the sum of its proper divisors (10594721169).

20222439279 is a wasteful number, since it uses less digits than its factorization.

20222439279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62974.

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 20222439279 in words is "twenty billion, two hundred twenty-two million, four hundred thirty-nine thousand, two hundred seventy-nine".