21112321022 has 8 divisors (see below), whose sum is σ = 34104518616. Its totient is φ = 9744148152.

The previous prime is 21112321007. The next prime is 21112321037. The reversal of 21112321022 is 22012321112.

It is an interprime number because it is at equal distance from previous prime (21112321007) and next prime (21112321037).

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

It is a congruent number.

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, 406006148 + ... + 406006199.

It is an arithmetic number, because the mean of its divisors is an integer number (4263064827).

Almost surely, 2^21112321022 is an apocalyptic number.

21112321022 is a deficient number, since it is larger than the sum of its proper divisors (12992197594).

21112321022 is a wasteful number, since it uses less digits than its factorization.

21112321022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812012362.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 21112321022 its reverse (22012321112), we get a palindrome (43124642134).

The spelling of 21112321022 in words is "twenty-one billion, one hundred twelve million, three hundred twenty-one thousand, twenty-two".