222000221986 has 4 divisors (see below), whose sum is σ = 333000332982. Its totient is φ = 111000110992.

The previous prime is 222000221977. The next prime is 222000222007. The reversal of 222000221986 is 689122000222.

222000221986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 178659227761 + 43340994225 = 422681^2 + 208185^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 55500055495 + ... + 55500055498.

Almost surely, 2^222000221986 is an apocalyptic number.

222000221986 is a deficient number, since it is larger than the sum of its proper divisors (111000110996).

222000221986 is a wasteful number, since it uses less digits than its factorization.

222000221986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111000110995.

The product of its (nonzero) digits is 13824, while the sum is 34.

The spelling of 222000221986 in words is "two hundred twenty-two billion, two hundred twenty-one thousand, nine hundred eighty-six".