202110210122 has 4 divisors (see below), whose sum is σ = 303165315186. Its totient is φ = 101055105060.

The previous prime is 202110210109. The next prime is 202110210149. The reversal of 202110210122 is 221012011202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 197046322201 + 5063887921 = 443899^2 + 71161^2 .

It is a junction number, because it is equal to n+sod(n) for n = 202110210097 and 202110210106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50527552529 + ... + 50527552532.

Almost surely, 2^202110210122 is an apocalyptic number.

202110210122 is a deficient number, since it is larger than the sum of its proper divisors (101055105064).

202110210122 is a wasteful number, since it uses less digits than its factorization.

202110210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101055105063.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 202110210122 its reverse (221012011202), we get a palindrome (423122221324).

The spelling of 202110210122 in words is "two hundred two billion, one hundred ten million, two hundred ten thousand, one hundred twenty-two".