22415122621000 has 128 divisors (see below), whose sum is σ = 53019654386400. Its totient is φ = 8869221580800.

The previous prime is 22415122620959. The next prime is 22415122621051. The reversal of 22415122621000 is 12622151422.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 5021068119076 + 17394054501924 = 2240774^2 + 4170618^2 .

It is a super-2 number, since 2×22415122621000² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22415122621000.

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, 57322144 + ... + 57711856.

Almost surely, 2^{22415122621000} is an apocalyptic number.

22415122621000 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 22415122621000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26509827193200).

22415122621000 is an abundant number, since it is smaller than the sum of its proper divisors (30604531765400).

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

22415122621000 is a wasteful number, since it uses less digits than its factorization.

22415122621000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390356 (or 390342 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 22415122621000 its reverse (12622151422), we get a palindrome (22427744772422).

The spelling of 22415122621000 in words is "twenty-two trillion, four hundred fifteen billion, one hundred twenty-two million, six hundred twenty-one thousand".