2222222221986 has 64 divisors (see below), whose sum is σ = 4941058805760. Its totient is φ = 661658829120.

The previous prime is 2222222221981. The next prime is 2222222221997. The reversal of 2222222221986 is 6891222222222.

It is not an unprimeable number, because it can be changed into a prime (2222222221981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56897781 + ... + 56936823.

It is an arithmetic number, because the mean of its divisors is an integer number (77204043840).

Almost surely, 2^{2222222221986} is an apocalyptic number.

2222222221986 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2222222221986 is an abundant number, since it is smaller than the sum of its proper divisors (2718836583774).

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

2222222221986 is a wasteful number, since it uses less digits than its factorization.

2222222221986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62631.

The product of its digits is 221184, while the sum is 42.

The spelling of 2222222221986 in words is "two trillion, two hundred twenty-two billion, two hundred twenty-two million, two hundred twenty-one thousand, nine hundred eighty-six".