226507221772 has 24 divisors (see below), whose sum is σ = 426897854096. Its totient is φ = 104537176128.

The previous prime is 226507221739. The next prime is 226507221779. The reversal of 226507221772 is 277122705622.

It is not an unprimeable number, because it can be changed into a prime (226507221779) 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, 1279438 + ... + 1445674.

Almost surely, 2^226507221772 is an apocalyptic number.

It is an amenable number.

226507221772 is a deficient number, since it is larger than the sum of its proper divisors (200390632324).

226507221772 is a wasteful number, since it uses less digits than its factorization.

226507221772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192457 (or 192455 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 43.

The spelling of 226507221772 in words is "two hundred twenty-six billion, five hundred seven million, two hundred twenty-one thousand, seven hundred seventy-two".