102222111986 has 4 divisors (see below), whose sum is σ = 153333167982. Its totient is φ = 51111055992.

The previous prime is 102222111949. The next prime is 102222112009. The reversal of 102222111986 is 689111222201.

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., 65943672025 + 36278439961 = 256795^2 + 190469^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25555527995 + ... + 25555527998.

Almost surely, 2^102222111986 is an apocalyptic number.

102222111986 is a deficient number, since it is larger than the sum of its proper divisors (51111055996).

102222111986 is an equidigital number, since it uses as much as digits as its factorization.

102222111986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51111055995.

The product of its (nonzero) digits is 6912, while the sum is 35.

The spelling of 102222111986 in words is "one hundred two billion, two hundred twenty-two million, one hundred eleven thousand, nine hundred eighty-six".