2213223656 has 32 divisors (see below), whose sum is σ = 4749876480. Its totient is φ = 947073600.

The previous prime is 2213223613. The next prime is 2213223671. The reversal of 2213223656 is 6563223122.

2213223656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7121 + ... + 66911.

It is an arithmetic number, because the mean of its divisors is an integer number (148433640).

Almost surely, 2^2213223656 is an apocalyptic number.

It is an amenable number.

2213223656 is an abundant number, since it is smaller than the sum of its proper divisors (2536652824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2213223656 is a wasteful number, since it uses less digits than its factorization.

2213223656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60465 (or 60461 counting only the distinct ones).

The product of its digits is 25920, while the sum is 32.

The square root of 2213223656 is about 47044.9110531628. The cubic root of 2213223656 is about 1303.1920877162.

Adding to 2213223656 its reverse (6563223122), we get a palindrome (8776446778).

The spelling of 2213223656 in words is "two billion, two hundred thirteen million, two hundred twenty-three thousand, six hundred fifty-six".