22321272224 has 12 divisors (see below), whose sum is σ = 43945004754. Its totient is φ = 11160636096.

The previous prime is 22321272167. The next prime is 22321272263. The reversal of 22321272224 is 42227212322.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 21146976400 + 1174295824 = 145420^2 + 34268^2 .

It is a super-3 number, since 3×22321272224³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348769847 + ... + 348769910.

Almost surely, 2^22321272224 is an apocalyptic number.

It is an amenable number.

22321272224 is a deficient number, since it is larger than the sum of its proper divisors (21623732530).

22321272224 is an equidigital number, since it uses as much as digits as its factorization.

22321272224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697539767 (or 697539759 counting only the distinct ones).

The product of its digits is 10752, while the sum is 29.

Adding to 22321272224 its reverse (42227212322), we get a palindrome (64548484546).

The spelling of 22321272224 in words is "twenty-two billion, three hundred twenty-one million, two hundred seventy-two thousand, two hundred twenty-four".