2001122112202 has 32 divisors (see below), whose sum is σ = 3066257121552. Its totient is φ = 979253581824.

The previous prime is 2001122112149. The next prime is 2001122112289. The reversal of 2001122112202 is 2022112211002.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1368780662601 + 632341449601 = 1169949^2 + 795199^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52646268 + ... + 52684264.

Almost surely, 2^{2001122112202} is an apocalyptic number.

2001122112202 is a deficient number, since it is larger than the sum of its proper divisors (1065135009350).

2001122112202 is a wasteful number, since it uses less digits than its factorization.

2001122112202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40842.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2001122112202 its reverse (2022112211002), we get a palindrome (4023234323204).

The spelling of 2001122112202 in words is "two trillion, one billion, one hundred twenty-two million, one hundred twelve thousand, two hundred two".