22501545212 has 24 divisors (see below), whose sum is σ = 40320064512. Its totient is φ = 10984604400.

The previous prime is 22501545211. The next prime is 22501545217. The reversal of 22501545212 is 21254510522.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22501545211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355364 + ... + 413867.

It is an arithmetic number, because the mean of its divisors is an integer number (1680002688).

Almost surely, 2^22501545212 is an apocalyptic number.

It is an amenable number.

22501545212 is a deficient number, since it is larger than the sum of its proper divisors (17818519300).

22501545212 is a wasteful number, since it uses less digits than its factorization.

22501545212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769409 (or 769407 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 29.

The spelling of 22501545212 in words is "twenty-two billion, five hundred one million, five hundred forty-five thousand, two hundred twelve".