201122431002 has 32 divisors (see below), whose sum is σ = 447267288960. Its totient is φ = 66991527360.

The previous prime is 201122430911. The next prime is 201122431009. The reversal of 201122431002 is 200134221102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (201122431009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1294798 + ... + 1441785.

It is an arithmetic number, because the mean of its divisors is an integer number (13977102780).

Almost surely, 2^201122431002 is an apocalyptic number.

201122431002 is an abundant number, since it is smaller than the sum of its proper divisors (246144857958).

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

201122431002 is a wasteful number, since it uses less digits than its factorization.

201122431002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2737955 (or 2737949 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 201122431002 its reverse (200134221102), we get a palindrome (401256652104).

The spelling of 201122431002 in words is "two hundred one billion, one hundred twenty-two million, four hundred thirty-one thousand, two".