210220210122 has 64 divisors (see below), whose sum is σ = 461551964160. Its totient is φ = 63441144000.

The previous prime is 210220210103. The next prime is 210220210139. The reversal of 210220210122 is 221012022012.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 817497 + ... + 1043427.

It is an arithmetic number, because the mean of its divisors is an integer number (7211749440).

Almost surely, 2^210220210122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210220210122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230775982080).

210220210122 is an abundant number, since it is smaller than the sum of its proper divisors (251331754038).

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

210220210122 is a wasteful number, since it uses less digits than its factorization.

210220210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226179.

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

Adding to 210220210122 its reverse (221012022012), we get a palindrome (431232232134).

The spelling of 210220210122 in words is "two hundred ten billion, two hundred twenty million, two hundred ten thousand, one hundred twenty-two".