201031220044 has 96 divisors (see below), whose sum is σ = 383467069440. Its totient is φ = 91928390400.

The previous prime is 201031220009. The next prime is 201031220053. The reversal of 201031220044 is 440022130102.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136662229 + ... + 136663699.

It is an arithmetic number, because the mean of its divisors is an integer number (3994448640).

Almost surely, 2^201031220044 is an apocalyptic number.

It is an amenable number.

201031220044 is a deficient number, since it is larger than the sum of its proper divisors (182435849396).

201031220044 is a wasteful number, since it uses less digits than its factorization.

201031220044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1991 (or 1989 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 201031220044 its reverse (440022130102), we get a palindrome (641053350146).

The spelling of 201031220044 in words is "two hundred one billion, thirty-one million, two hundred twenty thousand, forty-four".