672222112 has 12 divisors (see below), whose sum is σ = 1323437346. Its totient is φ = 336111040.

The previous prime is 672222097. The next prime is 672222113. The reversal of 672222112 is 211222276.

It can be written as a sum of positive squares in only one way, i.e., 667912336 + 4309776 = 25844^2 + 2076^2 .

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (672222113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10503439 + ... + 10503502.

Almost surely, 2^672222112 is an apocalyptic number.

It is an amenable number.

672222112 is a deficient number, since it is larger than the sum of its proper divisors (651215234).

672222112 is a wasteful number, since it uses less digits than its factorization.

672222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21006951 (or 21006943 counting only the distinct ones).

The product of its digits is 1344, while the sum is 25.

The square root of 672222112 is about 25927.2465179008. The cubic root of 672222112 is about 876.0003197041. Note that the first 3 decimals are identical.

Adding to 672222112 its reverse (211222276), we get a palindrome (883444388).

It can be divided in two parts, 672 and 222112, that added together give a square (222784 = 472²).

The spelling of 672222112 in words is "six hundred seventy-two million, two hundred twenty-two thousand, one hundred twelve".