22626451220 has 24 divisors (see below), whose sum is σ = 48620562144. Its totient is φ = 8840101536.

The previous prime is 22626451187. The next prime is 22626451229. The reversal of 22626451220 is 2215462622.

It is a super-2 number, since 2×22626451220² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22626451229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13154054 + ... + 13155773.

It is an arithmetic number, because the mean of its divisors is an integer number (2025856756).

Almost surely, 2^22626451220 is an apocalyptic number.

22626451220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22626451220 is an abundant number, since it is smaller than the sum of its proper divisors (25994110924).

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

22626451220 is a wasteful number, since it uses less digits than its factorization.

22626451220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26309879 (or 26309877 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The spelling of 22626451220 in words is "twenty-two billion, six hundred twenty-six million, four hundred fifty-one thousand, two hundred twenty".