210101111200122 has 16 divisors (see below), whose sum is σ = 424923595686720. Its totient is φ = 69246808185632.

The previous prime is 210101111200073. The next prime is 210101111200129. The reversal of 210101111200122 is 221002111101012.

It is a happy number.

It is a super-2 number, since 2×210101111200122² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (210101111200129) 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, 196723886358 + ... + 196723887425.

It is an arithmetic number, because the mean of its divisors is an integer number (26557724730420).

Almost surely, 2^{210101111200122} is an apocalyptic number.

210101111200122 is an abundant number, since it is smaller than the sum of its proper divisors (214822484486598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210101111200122 is a wasteful number, since it uses less digits than its factorization.

210101111200122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393447773877.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 210101111200122 its reverse (221002111101012), we get a palindrome (431103222301134).

The spelling of 210101111200122 in words is "two hundred ten trillion, one hundred one billion, one hundred eleven million, two hundred thousand, one hundred twenty-two".