22420312122 has 32 divisors (see below), whose sum is σ = 48579092352. Its totient is φ = 6857244864.

The previous prime is 22420312067. The next prime is 22420312129. The reversal of 22420312122 is 22121302422.

It is not an unprimeable number, because it can be changed into a prime (22420312129) 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, 847573 + ... + 873624.

It is an arithmetic number, because the mean of its divisors is an integer number (1518096636).

Almost surely, 2^22420312122 is an apocalyptic number.

22420312122 is an abundant number, since it is smaller than the sum of its proper divisors (26158780230).

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

22420312122 is a wasteful number, since it uses less digits than its factorization.

22420312122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721382.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 22420312122 its reverse (22121302422), we get a palindrome (44541614544).

The spelling of 22420312122 in words is "twenty-two billion, four hundred twenty million, three hundred twelve thousand, one hundred twenty-two".