22212021344 has 12 divisors (see below), whose sum is σ = 43729917084. Its totient is φ = 11106010656.

The previous prime is 22212021331. The next prime is 22212021397. The reversal of 22212021344 is 44312021222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347062802 + ... + 347062865.

It is an arithmetic number, because the mean of its divisors is an integer number (3644159757).

Almost surely, 2^22212021344 is an apocalyptic number.

It is an amenable number.

22212021344 is a deficient number, since it is larger than the sum of its proper divisors (21517895740).

22212021344 is an equidigital number, since it uses as much as digits as its factorization.

22212021344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694125677 (or 694125669 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 22212021344 its reverse (44312021222), we get a palindrome (66524042566).

The spelling of 22212021344 in words is "twenty-two billion, two hundred twelve million, twenty-one thousand, three hundred forty-four".