321200002122 has 16 divisors (see below), whose sum is σ = 642537825600. Its totient is φ = 107043697152.

The previous prime is 321200002093. The next prime is 321200002139. The reversal of 321200002122 is 221200002123.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5712247 + ... + 5768202.

It is an arithmetic number, because the mean of its divisors is an integer number (40158614100).

Almost surely, 2^321200002122 is an apocalyptic number.

321200002122 is an abundant number, since it is smaller than the sum of its proper divisors (321337823478).

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

321200002122 is a wasteful number, since it uses less digits than its factorization.

321200002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11485117.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 321200002122 its reverse (221200002123), we get a palindrome (542400004245).

Subtracting from 321200002122 its reverse (221200002123), we obtain a palindrome (99999999999).

The spelling of 321200002122 in words is "three hundred twenty-one billion, two hundred million, two thousand, one hundred twenty-two".