201100001120122 has 16 divisors (see below), whose sum is σ = 324930446549352. Its totient is φ = 92793499822080.

The previous prime is 201100001120093. The next prime is 201100001120159. The reversal of 201100001120122 is 221021100001102.

It can be written as a sum of positive squares in 4 ways, for example, as 181333182932001 + 19766818188121 = 13466001^2 + 4445989^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

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, 911775543 + ... + 911996074.

Almost surely, 2^{201100001120122} is an apocalyptic number.

201100001120122 is a deficient number, since it is larger than the sum of its proper divisors (123830445429230).

201100001120122 is a wasteful number, since it uses less digits than its factorization.

201100001120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1823775873.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 201100001120122 its reverse (221021100001102), we get a palindrome (422121101121224).

The spelling of 201100001120122 in words is "two hundred one trillion, one hundred billion, one million, one hundred twenty thousand, one hundred twenty-two".