201002021122 has 48 divisors (see below), whose sum is σ = 354721124160. Its totient is φ = 83660844960.

The previous prime is 201002021113. The next prime is 201002021131. The reversal of 201002021122 is 221120200102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (201002021113) and next prime (201002021131).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4707204 + ... + 4749712.

It is an arithmetic number, because the mean of its divisors is an integer number (7390023420).

Almost surely, 2^201002021122 is an apocalyptic number.

201002021122 is a deficient number, since it is larger than the sum of its proper divisors (153719103038).

201002021122 is an equidigital number, since it uses as much as digits as its factorization.

201002021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42727 (or 42656 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 201002021122 its reverse (221120200102), we get a palindrome (422122221224).

The spelling of 201002021122 in words is "two hundred one billion, two million, twenty-one thousand, one hundred twenty-two".