11221679982 has 8 divisors (see below), whose sum is σ = 22443359976. Its totient is φ = 3740559992.

The previous prime is 11221679981. The next prime is 11221679993. The reversal of 11221679982 is 28997612211.

It is a happy number.

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

11221679982 is an admirable number.

It is a super-2 number, since 2×11221679982² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221679981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 935139993 + ... + 935140004.

It is an arithmetic number, because the mean of its divisors is an integer number (2805419997).

Almost surely, 2^11221679982 is an apocalyptic number.

11221679982 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.

11221679982 is a wasteful number, since it uses less digits than its factorization.

11221679982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870280002.

The product of its digits is 217728, while the sum is 48.

The spelling of 11221679982 in words is "eleven billion, two hundred twenty-one million, six hundred seventy-nine thousand, nine hundred eighty-two".