201020101022122 has 16 divisors (see below), whose sum is σ = 304516489944744. Its totient is φ = 99514610200000.

The previous prime is 201020101022089. The next prime is 201020101022123. The reversal of 201020101022122 is 221220101020102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 160887128488641 + 40132972533481 = 12684129^2 + 6335059^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201020101022096 and 201020101022105.

It is not an unprimeable number, because it can be changed into a prime (201020101022123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78583872 + ... + 81101572.

Almost surely, 2^{201020101022122} is an apocalyptic number.

201020101022122 is a deficient number, since it is larger than the sum of its proper divisors (103496388922622).

201020101022122 is a wasteful number, since it uses less digits than its factorization.

201020101022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2913065.

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

Adding to 201020101022122 its reverse (221220101020102), we get a palindrome (422240202042224).

The spelling of 201020101022122 in words is "two hundred one trillion, twenty billion, one hundred one million, twenty-two thousand, one hundred twenty-two".