22229896621 has 6 divisors (see below), whose sum is σ = 23461470222. Its totient is φ = 21059901720.

The previous prime is 22229896573. The next prime is 22229896627. The reversal of 22229896621 is 12669892222.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 16176278596 + 6053618025 = 127186^2 + 77805^2 .

It is not a de Polignac number, because 22229896621 - 2¹¹ = 22229894573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22229896627) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30788970 + ... + 30789691.

It is an arithmetic number, because the mean of its divisors is an integer number (3910245037).

Almost surely, 2^22229896621 is an apocalyptic number.

It is an amenable number.

22229896621 is a deficient number, since it is larger than the sum of its proper divisors (1231573601).

22229896621 is an equidigital number, since it uses as much as digits as its factorization.

22229896621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61578699 (or 61578680 counting only the distinct ones).

The product of its digits is 746496, while the sum is 49.

The spelling of 22229896621 in words is "twenty-two billion, two hundred twenty-nine million, eight hundred ninety-six thousand, six hundred twenty-one".