222261836 has 12 divisors (see below), whose sum is σ = 393329160. Its totient is φ = 109882080.

The previous prime is 222261833. The next prime is 222261881. The reversal of 222261836 is 638162222.

222261836 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (222261833) 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, 311810 + ... + 312521.

It is an arithmetic number, because the mean of its divisors is an integer number (32777430).

Almost surely, 2^222261836 is an apocalyptic number.

It is an amenable number.

222261836 is a deficient number, since it is larger than the sum of its proper divisors (171067324).

222261836 is a wasteful number, since it uses less digits than its factorization.

222261836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624424 (or 624422 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The square root of 222261836 is about 14908.4484772896. The cubic root of 222261836 is about 605.7428536446.

The spelling of 222261836 in words is "two hundred twenty-two million, two hundred sixty-one thousand, eight hundred thirty-six".