222212748878 has 32 divisors (see below), whose sum is σ = 353409804000. Its totient is φ = 104608699776.

The previous prime is 222212748847. The next prime is 222212748881. The reversal of 222212748878 is 878847212222.

It is a Curzon number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1456148 + ... + 1601496.

It is an arithmetic number, because the mean of its divisors is an integer number (11044056375).

Almost surely, 2^222212748878 is an apocalyptic number.

222212748878 is a deficient number, since it is larger than the sum of its proper divisors (131197055122).

222212748878 is a wasteful number, since it uses less digits than its factorization.

222212748878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146036.

The product of its digits is 3211264, while the sum is 53.

The spelling of 222212748878 in words is "two hundred twenty-two billion, two hundred twelve million, seven hundred forty-eight thousand, eight hundred seventy-eight".