21662232322 has 32 divisors (see below), whose sum is σ = 33027442560. Its totient is φ = 10654968960.

The previous prime is 21662232311. The next prime is 21662232331. The reversal of 21662232322 is 22323226612.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21216172 + ... + 21217192.

It is an arithmetic number, because the mean of its divisors is an integer number (1032107580).

Almost surely, 2^21662232322 is an apocalyptic number.

21662232322 is a deficient number, since it is larger than the sum of its proper divisors (11365210238).

21662232322 is a wasteful number, since it uses less digits than its factorization.

21662232322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786.

The product of its digits is 20736, while the sum is 31.

Adding to 21662232322 its reverse (22323226612), we get a palindrome (43985458934).

The spelling of 21662232322 in words is "twenty-one billion, six hundred sixty-two million, two hundred thirty-two thousand, three hundred twenty-two".