22216624500 has 384 divisors, whose sum is σ = 78099840000. Its totient is φ = 4899686400.

The previous prime is 22216624489. The next prime is 22216624523. The reversal of 22216624500 is 542661222.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 127 ways as a sum of consecutive naturals, for example, 14919756 + ... + 14921244.

It is an arithmetic number, because the mean of its divisors is an integer number (203385000).

Almost surely, 2^22216624500 is an apocalyptic number.

22216624500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22216624500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39049920000).

22216624500 is an abundant number, since it is smaller than the sum of its proper divisors (55883215500).

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

22216624500 is a wasteful number, since it uses less digits than its factorization.

22216624500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561 (or 1535 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 22216624500 in words is "twenty-two billion, two hundred sixteen million, six hundred twenty-four thousand, five hundred".