22491245622 has 8 divisors (see below), whose sum is σ = 44982491256. Its totient is φ = 7497081872.

The previous prime is 22491245603. The next prime is 22491245639. The reversal of 22491245622 is 22654219422.

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

22491245622 is an admirable number.

It is a super-2 number, since 2×22491245622² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1874270463 + ... + 1874270474.

It is an arithmetic number, because the mean of its divisors is an integer number (5622811407).

Almost surely, 2^22491245622 is an apocalyptic number.

22491245622 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.

22491245622 is a wasteful number, since it uses less digits than its factorization.

22491245622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3748540942.

The product of its digits is 138240, while the sum is 39.

The spelling of 22491245622 in words is "twenty-two billion, four hundred ninety-one million, two hundred forty-five thousand, six hundred twenty-two".