21022132322 has 16 divisors (see below), whose sum is σ = 31595546880. Its totient is φ = 10490303472.

The previous prime is 21022132309. The next prime is 21022132333. The reversal of 21022132322 is 22323122012.

It is a happy number.

It is a super-2 number, since 2×21022132322² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21022132294 and 21022132303.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2814629 + ... + 2822087.

It is an arithmetic number, because the mean of its divisors is an integer number (1974721680).

Almost surely, 2^21022132322 is an apocalyptic number.

21022132322 is a deficient number, since it is larger than the sum of its proper divisors (10573414558).

21022132322 is a wasteful number, since it uses less digits than its factorization.

21022132322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10057.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21022132322 its reverse (22323122012), we get a palindrome (43345254334).

The spelling of 21022132322 in words is "twenty-one billion, twenty-two million, one hundred thirty-two thousand, three hundred twenty-two".