210020102122 has 8 divisors (see below), whose sum is σ = 315032175396. Its totient is φ = 105009376992.

The previous prime is 210020102113. The next prime is 210020102167. The reversal of 210020102122 is 221201020012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 192088481841 + 17931620281 = 438279^2 + 133909^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273948 + ... + 703624.

Almost surely, 2^210020102122 is an apocalyptic number.

210020102122 is a deficient number, since it is larger than the sum of its proper divisors (105012073274).

210020102122 is a wasteful number, since it uses less digits than its factorization.

210020102122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674072.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 210020102122 its reverse (221201020012), we get a palindrome (431221122134).

The spelling of 210020102122 in words is "two hundred ten billion, twenty million, one hundred two thousand, one hundred twenty-two".