210120220122 has 16 divisors (see below), whose sum is σ = 420250774080. Its totient is φ = 70038351072.

The previous prime is 210120220109. The next prime is 210120220129. The reversal of 210120220122 is 221022021012.

It is not an unprimeable number, because it can be changed into a prime (210120220129) 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, 152422 + ... + 665937.

It is an arithmetic number, because the mean of its divisors is an integer number (26265673380).

Almost surely, 2^210120220122 is an apocalyptic number.

210120220122 is an abundant number, since it is smaller than the sum of its proper divisors (210130553958).

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

210120220122 is a wasteful number, since it uses less digits than its factorization.

210120220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861157.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 210120220122 its reverse (221022021012), we get a palindrome (431142241134).

The spelling of 210120220122 in words is "two hundred ten billion, one hundred twenty million, two hundred twenty thousand, one hundred twenty-two".