222066187781312 has 56 divisors (see below), whose sum is σ = 509272978891680. Its totient is φ = 94101883729920.

The previous prime is 222066187781303. The next prime is 222066187781371. The reversal of 222066187781312 is 213187781660222.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (56).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2784698639 + ... + 2784778382.

Almost surely, 2^{222066187781312} is an apocalyptic number.

It is an amenable number.

222066187781312 is an abundant number, since it is smaller than the sum of its proper divisors (287206791110368).

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

222066187781312 is an equidigital number, since it uses as much as digits as its factorization.

222066187781312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5569477129 (or 5569477119 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 56.

The spelling of 222066187781312 in words is "two hundred twenty-two trillion, sixty-six billion, one hundred eighty-seven million, seven hundred eighty-one thousand, three hundred twelve".