21301123322 has 4 divisors (see below), whose sum is σ = 31951684986. Its totient is φ = 10650561660.

The previous prime is 21301123309. The next prime is 21301123339. The reversal of 21301123322 is 22332110312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12897917761 + 8403205561 = 113569^2 + 91669^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21301123294 and 21301123303.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5325280829 + ... + 5325280832.

Almost surely, 2^21301123322 is an apocalyptic number.

21301123322 is a deficient number, since it is larger than the sum of its proper divisors (10650561664).

21301123322 is a wasteful number, since it uses less digits than its factorization.

21301123322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10650561663.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21301123322 its reverse (22332110312), we get a palindrome (43633233634).

The spelling of 21301123322 in words is "twenty-one billion, three hundred one million, one hundred twenty-three thousand, three hundred twenty-two".