210202122122 has 8 divisors (see below), whose sum is σ = 315619438116. Its totient is φ = 104995642752.

The previous prime is 210202122101. The next prime is 210202122167. The reversal of 210202122122 is 221221202012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 200882343601 + 9319778521 = 448199^2 + 96539^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 210202122122.

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, 52706663 + ... + 52710650.

Almost surely, 2^210202122122 is an apocalyptic number.

210202122122 is a deficient number, since it is larger than the sum of its proper divisors (105417315994).

210202122122 is a wasteful number, since it uses less digits than its factorization.

210202122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105418312.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 210202122122 its reverse (221221202012), we get a palindrome (431423324134).

The spelling of 210202122122 in words is "two hundred ten billion, two hundred two million, one hundred twenty-two thousand, one hundred twenty-two".