201233022256 has 20 divisors (see below), whose sum is σ = 445587406672. Its totient is φ = 86242723776.

The previous prime is 201233022227. The next prime is 201233022283. The reversal of 201233022256 is 652220332102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 898361595 + ... + 898361818.

Almost surely, 2^201233022256 is an apocalyptic number.

It is an amenable number.

201233022256 is an abundant number, since it is smaller than the sum of its proper divisors (244354384416).

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

201233022256 is a wasteful number, since it uses less digits than its factorization.

201233022256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1796723428 (or 1796723422 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 201233022256 its reverse (652220332102), we get a palindrome (853453354358).

The spelling of 201233022256 in words is "two hundred one billion, two hundred thirty-three million, twenty-two thousand, two hundred fifty-six".