201020100000122 has 24 divisors (see below), whose sum is σ = 332669525797404. Its totient is φ = 91027969803264.

The previous prime is 201020100000101. The next prime is 201020100000163. The reversal of 201020100000122 is 221000001020102.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 68526625042561 + 132493474957561 = 8278081^2 + 11510581^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5610680423 + ... + 5610716250.

Almost surely, 2^{201020100000122} is an apocalyptic number.

201020100000122 is a deficient number, since it is larger than the sum of its proper divisors (131649425797282).

201020100000122 is a wasteful number, since it uses less digits than its factorization.

201020100000122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11221396754 (or 11221396741 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 201020100000122 its reverse (221000001020102), we get a palindrome (422020101020224).

The spelling of 201020100000122 in words is "two hundred one trillion, twenty billion, one hundred million, one hundred twenty-two", and thus it is an aban number.