22206122555520 has 256 divisors, whose sum is σ = 71362165311360. Its totient is φ = 5873147904000.

The previous prime is 22206122555509. The next prime is 22206122555557. The reversal of 22206122555520 is 2555522160222.

It is a super-2 number, since 2×22206122555520² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 468055000 + ... + 468102440.

Almost surely, 2^{22206122555520} is an apocalyptic number.

22206122555520 is a gapful number since it is divisible by the number (20) 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 22206122555520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35681082655680).

22206122555520 is an abundant number, since it is smaller than the sum of its proper divisors (49156042755840).

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

22206122555520 is a wasteful number, since it uses less digits than its factorization.

22206122555520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49455 (or 49443 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 39.

The spelling of 22206122555520 in words is "twenty-two trillion, two hundred six billion, one hundred twenty-two million, five hundred fifty-five thousand, five hundred twenty".