22717004172 has 12 divisors (see below), whose sum is σ = 53006343096. Its totient is φ = 7572334720.

The previous prime is 22717004161. The next prime is 22717004179. The reversal of 22717004172 is 27140071722.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (22717004179) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 946541829 + ... + 946541852.

It is an arithmetic number, because the mean of its divisors is an integer number (4417195258).

Almost surely, 2^22717004172 is an apocalyptic number.

It is an amenable number.

22717004172 is an abundant number, since it is smaller than the sum of its proper divisors (30289338924).

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

22717004172 is a wasteful number, since it uses less digits than its factorization.

22717004172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1893083688 (or 1893083686 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 33.

Adding to 22717004172 its reverse (27140071722), we get a palindrome (49857075894).

The spelling of 22717004172 in words is "twenty-two billion, seven hundred seventeen million, four thousand, one hundred seventy-two".