210120100122 has 32 divisors (see below), whose sum is σ = 443590387200. Its totient is φ = 66168873648.

The previous prime is 210120100117. The next prime is 210120100129. The reversal of 210120100122 is 221001021012.

It is a junction number, because it is equal to n+sod(n) for n = 210120100098 and 210120100107.

It is not an unprimeable number, because it can be changed into a prime (210120100129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2526148 + ... + 2607999.

It is an arithmetic number, because the mean of its divisors is an integer number (13862199600).

Almost surely, 2^210120100122 is an apocalyptic number.

210120100122 is an abundant number, since it is smaller than the sum of its proper divisors (233470287078).

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

210120100122 is a wasteful number, since it uses less digits than its factorization.

210120100122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5134530.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 210120100122 its reverse (221001021012), we get a palindrome (431121121134).

The spelling of 210120100122 in words is "two hundred ten billion, one hundred twenty million, one hundred thousand, one hundred twenty-two".