22211100021 has 8 divisors (see below), whose sum is σ = 32307054624. Its totient is φ = 13461272720.

The previous prime is 22211100017. The next prime is 22211100031. The reversal of 22211100021 is 12000111222.

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

It is a cyclic number.

It is not a de Polignac number, because 22211100021 - 2² = 22211100017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22211100031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336531786 + ... + 336531851.

It is an arithmetic number, because the mean of its divisors is an integer number (4038381828).

Almost surely, 2^22211100021 is an apocalyptic number.

It is an amenable number.

22211100021 is a deficient number, since it is larger than the sum of its proper divisors (10095954603).

22211100021 is a wasteful number, since it uses less digits than its factorization.

22211100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673063651.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22211100021 its reverse (12000111222), we get a palindrome (34211211243).

The spelling of 22211100021 in words is "twenty-two billion, two hundred eleven million, one hundred thousand, twenty-one".