21342014122 has 24 divisors (see below), whose sum is σ = 37894630788. Its totient is φ = 8954689920.

The previous prime is 21342014117. The next prime is 21342014131. The reversal of 21342014122 is 22141024312.

It can be written as a sum of positive squares in 2 ways, for example, as 20351590281 + 990423841 = 142659^2 + 31471^2 .

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 21342014093 and 21342014102.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3388783 + ... + 3395074.

Almost surely, 2^21342014122 is an apocalyptic number.

21342014122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21342014122 is a deficient number, since it is larger than the sum of its proper divisors (16552616666).

21342014122 is a wasteful number, since it uses less digits than its factorization.

21342014122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6783894 (or 6783883 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 21342014122 its reverse (22141024312), we get a palindrome (43483038434).

The spelling of 21342014122 in words is "twenty-one billion, three hundred forty-two million, fourteen thousand, one hundred twenty-two".