21313414122 has 128 divisors (see below), whose sum is σ = 60245821440. Its totient is φ = 4841130240.

The previous prime is 21313414093. The next prime is 21313414139. The reversal of 21313414122 is 22141431312.

It is a junction number, because it is equal to n+sod(n) for n = 21313414092 and 21313414101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20728 + ... + 207500.

It is an arithmetic number, because the mean of its divisors is an integer number (470670480).

Almost surely, 2^21313414122 is an apocalyptic number.

21313414122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 21313414122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30122910720).

21313414122 is an abundant number, since it is smaller than the sum of its proper divisors (38932407318).

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

21313414122 is a wasteful number, since it uses less digits than its factorization.

21313414122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186828.

The product of its digits is 1152, while the sum is 24.

Adding to 21313414122 its reverse (22141431312), we get a palindrome (43454845434).

The spelling of 21313414122 in words is "twenty-one billion, three hundred thirteen million, four hundred fourteen thousand, one hundred twenty-two".