22501555422 has 8 divisors (see below), whose sum is σ = 45003110856. Its totient is φ = 7500518472.

The previous prime is 22501555421. The next prime is 22501555423. The reversal of 22501555422 is 22455510522.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22501555421) and next prime (22501555423).

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

22501555422 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22501555421) 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, 1875129613 + ... + 1875129624.

It is an arithmetic number, because the mean of its divisors is an integer number (5625388857).

Almost surely, 2^22501555422 is an apocalyptic number.

22501555422 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.

22501555422 is a wasteful number, since it uses less digits than its factorization.

22501555422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3750259242.

The product of its (nonzero) digits is 40000, while the sum is 33.

The spelling of 22501555422 in words is "twenty-two billion, five hundred one million, five hundred fifty-five thousand, four hundred twenty-two".