21313321122 has 32 divisors (see below), whose sum is σ = 44068708224. Its totient is φ = 6866640000.

The previous prime is 21313321111. The next prime is 21313321163. The reversal of 21313321122 is 22112331312.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284379 + ... + 351422.

It is an arithmetic number, because the mean of its divisors is an integer number (1377147132).

Almost surely, 2^21313321122 is an apocalyptic number.

21313321122 is an abundant number, since it is smaller than the sum of its proper divisors (22755387102).

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

21313321122 is a wasteful number, since it uses less digits than its factorization.

21313321122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635994.

The product of its digits is 432, while the sum is 21.

Adding to 21313321122 its reverse (22112331312), we get a palindrome (43425652434).

The spelling of 21313321122 in words is "twenty-one billion, three hundred thirteen million, three hundred twenty-one thousand, one hundred twenty-two".