201020001000122 has 64 divisors (see below), whose sum is σ = 328739692320000. Its totient is φ = 91826030596608.

The previous prime is 201020001000079. The next prime is 201020001000131. The reversal of 201020001000122 is 221000100020102.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6027027398 + ... + 6027060750.

It is an arithmetic number, because the mean of its divisors is an integer number (5136557692500).

Almost surely, 2^{201020001000122} is an apocalyptic number.

201020001000122 is a deficient number, since it is larger than the sum of its proper divisors (127719691319878).

201020001000122 is a wasteful number, since it uses less digits than its factorization.

201020001000122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39815.

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

Adding to 201020001000122 its reverse (221000100020102), we get a palindrome (422020101020224).

The spelling of 201020001000122 in words is "two hundred one trillion, twenty billion, one million, one hundred twenty-two", and thus it is an aban number.