201020021211122 has 128 divisors (see below), whose sum is σ = 338086644940800. Its totient is φ = 89214483456000.

The previous prime is 201020021211101. The next prime is 201020021211157. The reversal of 201020021211122 is 221112120020102.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 201020021211122.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2575522754 + ... + 2575600802.

It is an arithmetic number, because the mean of its divisors is an integer number (2641301913600).

Almost surely, 2^{201020021211122} is an apocalyptic number.

201020021211122 is a deficient number, since it is larger than the sum of its proper divisors (137066623729678).

201020021211122 is a wasteful number, since it uses less digits than its factorization.

201020021211122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78568.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 201020021211122 its reverse (221112120020102), we get a palindrome (422132141231224).

The spelling of 201020021211122 in words is "two hundred one trillion, twenty billion, twenty-one million, two hundred eleven thousand, one hundred twenty-two".