22253221352 has 8 divisors (see below), whose sum is σ = 41724790050. Its totient is φ = 11126610672.

The previous prime is 22253221307. The next prime is 22253221433. The reversal of 22253221352 is 25312235222.

It can be written as a sum of positive squares in only one way, i.e., 17427696196 + 4825525156 = 132014^2 + 69466^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×22253221352² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1390826327 + ... + 1390826342.

Almost surely, 2^22253221352 is an apocalyptic number.

It is an amenable number.

22253221352 is a deficient number, since it is larger than the sum of its proper divisors (19471568698).

22253221352 is a wasteful number, since it uses less digits than its factorization.

22253221352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2781652675 (or 2781652671 counting only the distinct ones).

The product of its digits is 14400, while the sum is 29.

Adding to 22253221352 its reverse (25312235222), we get a palindrome (47565456574).

The spelling of 22253221352 in words is "twenty-two billion, two hundred fifty-three million, two hundred twenty-one thousand, three hundred fifty-two".