22720224272 has 10 divisors (see below), whose sum is σ = 44020434558. Its totient is φ = 11360112128.

The previous prime is 22720224259. The next prime is 22720224283. The reversal of 22720224272 is 27242202722.

It can be written as a sum of positive squares in only one way, i.e., 14174331136 + 8545893136 = 119056^2 + 92444^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710006993 + ... + 710007024.

Almost surely, 2^22720224272 is an apocalyptic number.

It is an amenable number.

22720224272 is a deficient number, since it is larger than the sum of its proper divisors (21300210286).

22720224272 is a wasteful number, since it uses less digits than its factorization.

22720224272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420014025 (or 1420014019 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 32.

Adding to 22720224272 its reverse (27242202722), we get a palindrome (49962426994).

The spelling of 22720224272 in words is "twenty-two billion, seven hundred twenty million, two hundred twenty-four thousand, two hundred seventy-two".