22420304412 has 324 divisors, whose sum is σ = 64487174808. Its totient is φ = 6055808000.

The previous prime is 22420304411. The next prime is 22420304443. The reversal of 22420304412 is 21440302422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22420304411) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 221983162 + ... + 221983262.

Almost surely, 2^22420304412 is an apocalyptic number.

22420304412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22420304412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32243587404).

22420304412 is an abundant number, since it is smaller than the sum of its proper divisors (42066870396).

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

22420304412 is a wasteful number, since it uses less digits than its factorization.

22420304412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 22420304412 its reverse (21440302422), we get a palindrome (43860606834).

The spelling of 22420304412 in words is "twenty-two billion, four hundred twenty million, three hundred four thousand, four hundred twelve".