22501311500004 has 24 divisors (see below), whose sum is σ = 52651794058080. Its totient is φ = 7479189467904.

The previous prime is 22501311499999. The next prime is 22501311500021. The reversal of 22501311500004 is 40000511310522.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2655957934 + ... + 2655966405.

It is an arithmetic number, because the mean of its divisors is an integer number (2193824752420).

Almost surely, 2^{22501311500004} is an apocalyptic number.

It is an amenable number.

22501311500004 is an abundant number, since it is smaller than the sum of its proper divisors (30150482558076).

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

22501311500004 is a wasteful number, since it uses less digits than its factorization.

22501311500004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5311924699 (or 5311924697 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 22501311500004 its reverse (40000511310522), we get a palindrome (62501822810526).

The spelling of 22501311500004 in words is "twenty-two trillion, five hundred one billion, three hundred eleven million, five hundred thousand, four".