222665999112 has 252 divisors, whose sum is σ = 647212282605. Its totient is φ = 71783568576.

The previous prime is 222665999069. The next prime is 222665999119. The reversal of 222665999112 is 211999566222.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

222665999112 is a `hidden beast` number, since 22 + 26 + 6 + 599 + 9 + 1 + 1 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 179645431716 + 43020567396 = 423846^2 + 207414^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=333666.

It is a Harshad number since it is a multiple of its sum of digits (54).

Its product of digits (2099520) is a multiple of the sum of its prime factors (432).

It is not an unprimeable number, because it can be changed into a prime (222665999119) by changing a digit.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 1333329253 + ... + 1333329419.

Almost surely, 2^222665999112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222665999112

222665999112 is an abundant number, since it is smaller than the sum of its proper divisors (424546283493).

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

222665999112 is an frugal number, since it uses more digits than its factorization.

222665999112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432 (or 209 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 54.

The spelling of 222665999112 in words is "two hundred twenty-two billion, six hundred sixty-five million, nine hundred ninety-nine thousand, one hundred twelve".