22221631986 has 8 divisors (see below), whose sum is σ = 44443263984. Its totient is φ = 7407210660.

The previous prime is 22221631973. The next prime is 22221632011. The reversal of 22221631986 is 68913612222.

It is a sphenic number, since it is the product of 3 distinct primes.

22221631986 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1851802660 + ... + 1851802671.

It is an arithmetic number, because the mean of its divisors is an integer number (5555407998).

Almost surely, 2^22221631986 is an apocalyptic number.

22221631986 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22221631986 is a wasteful number, since it uses less digits than its factorization.

22221631986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3703605336.

The product of its digits is 124416, while the sum is 42.

The spelling of 22221631986 in words is "twenty-two billion, two hundred twenty-one million, six hundred thirty-one thousand, nine hundred eighty-six".