201211133122 has 16 divisors (see below), whose sum is σ = 323696165760. Its totient is φ = 93512223792.

The previous prime is 201211133117. The next prime is 201211133131. The reversal of 201211133122 is 221331112102.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 201211133122.

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, 49951098 + ... + 49955125.

It is an arithmetic number, because the mean of its divisors is an integer number (20231010360).

Almost surely, 2^201211133122 is an apocalyptic number.

201211133122 is a deficient number, since it is larger than the sum of its proper divisors (122485032638).

201211133122 is a wasteful number, since it uses less digits than its factorization.

201211133122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99906297.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 201211133122 its reverse (221331112102), we get a palindrome (422542245224).

The spelling of 201211133122 in words is "two hundred one billion, two hundred eleven million, one hundred thirty-three thousand, one hundred twenty-two".