188922222244 has 36 divisors (see below), whose sum is σ = 386543987676. Its totient is φ = 80555651904.

The previous prime is 188922222241. The next prime is 188922222263. The reversal of 188922222244 is 442222229881.

It can be written as a sum of positive squares in 2 ways, for example, as 156608564644 + 32313657600 = 395738^2 + 179760^2 .

It is a super-2 number, since 2×188922222244² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 188922222194 and 188922222203.

It is not an unprimeable number, because it can be changed into a prime (188922222241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2407807 + ... + 2485030.

It is an arithmetic number, because the mean of its divisors is an integer number (10737332991).

Almost surely, 2^188922222244 is an apocalyptic number.

188922222244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

188922222244 is an abundant number, since it is smaller than the sum of its proper divisors (197621765432).

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

188922222244 is a wasteful number, since it uses less digits than its factorization.

188922222244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4893052 (or 4893043 counting only the distinct ones).

The product of its digits is 589824, while the sum is 46.

The spelling of 188922222244 in words is "one hundred eighty-eight billion, nine hundred twenty-two million, two hundred twenty-two thousand, two hundred forty-four".