20222218494 has 24 divisors (see below), whose sum is σ = 44557432920. Its totient is φ = 6626489328.

The previous prime is 20222218487. The next prime is 20222218507. The reversal of 20222218494 is 49481222202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9519757 + ... + 9521880.

It is an arithmetic number, because the mean of its divisors is an integer number (1856559705).

Almost surely, 2^20222218494 is an apocalyptic number.

20222218494 is an abundant number, since it is smaller than the sum of its proper divisors (24335214426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20222218494 is a wasteful number, since it uses less digits than its factorization.

20222218494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19041704 (or 19041701 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The spelling of 20222218494 in words is "twenty billion, two hundred twenty-two million, two hundred eighteen thousand, four hundred ninety-four".