8223572212 has 12 divisors (see below), whose sum is σ = 14742257796. Its totient is φ = 4011498560.

The previous prime is 8223572209. The next prime is 8223572219. The reversal of 8223572212 is 2122753228.

It can be written as a sum of positive squares in 2 ways, for example, as 3369105936 + 4854466276 = 58044^2 + 69674^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8223572219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25071703 + ... + 25072030.

It is an arithmetic number, because the mean of its divisors is an integer number (1228521483).

Almost surely, 2^8223572212 is an apocalyptic number.

8223572212 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

8223572212 is a deficient number, since it is larger than the sum of its proper divisors (6518685584).

8223572212 is a wasteful number, since it uses less digits than its factorization.

8223572212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50143778 (or 50143776 counting only the distinct ones).

The product of its digits is 26880, while the sum is 34.

The square root of 8223572212 is about 90683.9137443902. The cubic root of 8223572212 is about 2018.4601056864.

The spelling of 8223572212 in words is "eight billion, two hundred twenty-three million, five hundred seventy-two thousand, two hundred twelve".