21132441322 has 4 divisors (see below), whose sum is σ = 31698661986. Its totient is φ = 10566220660.

The previous prime is 21132441313. The next prime is 21132441347. The reversal of 21132441322 is 22314423112.

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., 20535176601 + 597264721 = 143301^2 + 24439^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5283110329 + ... + 5283110332.

Almost surely, 2^21132441322 is an apocalyptic number.

21132441322 is a deficient number, since it is larger than the sum of its proper divisors (10566220664).

21132441322 is a wasteful number, since it uses less digits than its factorization.

21132441322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10566220663.

The product of its digits is 2304, while the sum is 25.

Adding to 21132441322 its reverse (22314423112), we get a palindrome (43446864434).

The spelling of 21132441322 in words is "twenty-one billion, one hundred thirty-two million, four hundred forty-one thousand, three hundred twenty-two".