22520001012 has 24 divisors (see below), whose sum is σ = 53966850336. Its totient is φ = 7303783968.

The previous prime is 22520001001. The next prime is 22520001013. The reversal of 22520001012 is 21010002522.

It is a junction number, because it is equal to n+sod(n) for n = 22520000982 and 22520001000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22520001013) 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, 25359918 + ... + 25360805.

It is an arithmetic number, because the mean of its divisors is an integer number (2248618764).

Almost surely, 2^22520001012 is an apocalyptic number.

It is an amenable number.

22520001012 is an abundant number, since it is smaller than the sum of its proper divisors (31446849324).

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

22520001012 is a wasteful number, since it uses less digits than its factorization.

22520001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50720767 (or 50720765 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 22520001012 its reverse (21010002522), we get a palindrome (43530003534).

The spelling of 22520001012 in words is "twenty-two billion, five hundred twenty million, one thousand, twelve".