22981250218 has 12 divisors (see below), whose sum is σ = 35333164710. Its totient is φ = 11210364320.

The previous prime is 22981250209. The next prime is 22981250249. The reversal of 22981250218 is 81205218922.

It can be written as a sum of positive squares in 3 ways, for example, as 4646194569 + 18335055649 = 68163^2 + 135407^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3414433 + ... + 3421156.

Almost surely, 2^22981250218 is an apocalyptic number.

22981250218 is a deficient number, since it is larger than the sum of its proper divisors (12351914492).

22981250218 is an equidigital number, since it uses as much as digits as its factorization.

22981250218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6835673 (or 6835632 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 40.

The spelling of 22981250218 in words is "twenty-two billion, nine hundred eighty-one million, two hundred fifty thousand, two hundred eighteen".