222168371685 has 16 divisors (see below), whose sum is σ = 382813194624. Its totient is φ = 109375198272.

The previous prime is 222168371641. The next prime is 222168371687. The reversal of 222168371685 is 586173861222.

222168371685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 222168371685 - 2¹⁰ = 222168370661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222168371687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 569662297 + ... + 569662686.

It is an arithmetic number, because the mean of its divisors is an integer number (23925824664).

Almost surely, 2^222168371685 is an apocalyptic number.

It is an amenable number.

222168371685 is a deficient number, since it is larger than the sum of its proper divisors (160644822939).

222168371685 is a wasteful number, since it uses less digits than its factorization.

222168371685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139325004.

The product of its digits is 1935360, while the sum is 51.

The spelling of 222168371685 in words is "two hundred twenty-two billion, one hundred sixty-eight million, three hundred seventy-one thousand, six hundred eighty-five".