2122231986 has 24 divisors (see below), whose sum is σ = 5255050944. Its totient is φ = 606351960.

The previous prime is 2122231981. The next prime is 2122231997. The reversal of 2122231986 is 6891322212.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2122231986.

It is not an unprimeable number, because it can be changed into a prime (2122231981) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 8421430 + ... + 8421681.

It is an arithmetic number, because the mean of its divisors is an integer number (218960456).

Almost surely, 2^2122231986 is an apocalyptic number.

2122231986 is an abundant number, since it is smaller than the sum of its proper divisors (3132818958).

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

2122231986 is a wasteful number, since it uses less digits than its factorization.

2122231986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16843126 (or 16843123 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 2122231986 is about 46067.6891758204. The cubic root of 2122231986 is about 1285.0823297591.

The spelling of 2122231986 in words is "two billion, one hundred twenty-two million, two hundred thirty-one thousand, nine hundred eighty-six".