21322421122 has 8 divisors (see below), whose sum is σ = 33865021836. Its totient is φ = 10034080512.

The previous prime is 21322421111. The next prime is 21322421143. The reversal of 21322421122 is 22112422312.

It can be written as a sum of positive squares in 2 ways, for example, as 20352160921 + 970260201 = 142661^2 + 31149^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 21322421093 and 21322421102.

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, 313564983 + ... + 313565050.

Almost surely, 2^21322421122 is an apocalyptic number.

21322421122 is a deficient number, since it is larger than the sum of its proper divisors (12542600714).

21322421122 is a wasteful number, since it uses less digits than its factorization.

21322421122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627130052.

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

Adding to 21322421122 its reverse (22112422312), we get a palindrome (43434843434).

The spelling of 21322421122 in words is "twenty-one billion, three hundred twenty-two million, four hundred twenty-one thousand, one hundred twenty-two".