210242203122 has 32 divisors (see below), whose sum is σ = 493541546112. Its totient is φ = 58445708544.

The previous prime is 210242203111. The next prime is 210242203139. The reversal of 210242203122 is 221302242012.

It is a super-3 number, since 3×210242203122³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67643943 + ... + 67647050.

It is an arithmetic number, because the mean of its divisors is an integer number (15423173316).

Almost surely, 2^210242203122 is an apocalyptic number.

210242203122 is an abundant number, since it is smaller than the sum of its proper divisors (283299342990).

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

210242203122 is a wasteful number, since it uses less digits than its factorization.

210242203122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135291042.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 210242203122 its reverse (221302242012), we get a palindrome (431544445134).

The spelling of 210242203122 in words is "two hundred ten billion, two hundred forty-two million, two hundred three thousand, one hundred twenty-two".