201021310122 has 16 divisors (see below), whose sum is σ = 402475400640. Its totient is φ = 66934973312.

The previous prime is 201021310109. The next prime is 201021310153. The reversal of 201021310122 is 221013120102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18026478 + ... + 18037625.

It is an arithmetic number, because the mean of its divisors is an integer number (25154712540).

Almost surely, 2^201021310122 is an apocalyptic number.

201021310122 is an abundant number, since it is smaller than the sum of its proper divisors (201454090518).

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

201021310122 is a wasteful number, since it uses less digits than its factorization.

201021310122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36065037.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 201021310122 its reverse (221013120102), we get a palindrome (422034430224).

The spelling of 201021310122 in words is "two hundred one billion, twenty-one million, three hundred ten thousand, one hundred twenty-two".