222189778962 has 18 divisors (see below), whose sum is σ = 481415520807. Its totient is φ = 74062593036.

The previous prime is 222189778903. The next prime is 222189778969. The reversal of 222189778962 is 269877981222.

It can be written as a sum of positive squares in only one way, i.e., 111094889481 + 111094889481 = 333309^2 + 333309^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=333309.

It is a self number, because there is not a number n which added to its sum of digits gives 222189778962.

It is not an unprimeable number, because it can be changed into a prime (222189778969) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1944303 + ... + 2055405.

Almost surely, 2^222189778962 is an apocalyptic number.

222189778962 is an abundant number, since it is smaller than the sum of its proper divisors (259225741845).

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

222189778962 is an frugal number, since it uses more digits than its factorization.

222189778962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222214 (or 111108 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 63.

The spelling of 222189778962 in words is "two hundred twenty-two billion, one hundred eighty-nine million, seven hundred seventy-eight thousand, nine hundred sixty-two".