222193778688 has 540 divisors, whose sum is σ = 771555116475. Its totient is φ = 61436067840.

The previous prime is 222193778687. The next prime is 222193778693. The reversal of 222193778688 is 886877391222.

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.

222193778688 is a `hidden beast` number, since 222 + 193 + 77 + 86 + 88 = 666.

It can be written as a sum of positive squares in only one way, i.e., 111096889344 + 111096889344 = 333312^2 + 333312^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=333312.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (222193778687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 7167541233 + ... + 7167541263.

Almost surely, 2^222193778688 is an apocalyptic number.

222193778688 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222193778688

222193778688 is an abundant number, since it is smaller than the sum of its proper divisors (549361337787).

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

222193778688 is an frugal number, since it uses more digits than its factorization.

222193778688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120 (or 43 counting only the distinct ones).

The product of its digits is 32514048, while the sum is 63.

The spelling of 222193778688 in words is "two hundred twenty-two billion, one hundred ninety-three million, seven hundred seventy-eight thousand, six hundred eighty-eight".