8622221400 has 144 divisors (see below), whose sum is σ = 31183785360. Its totient is φ = 2122387200.

The previous prime is 8622221383. The next prime is 8622221417. The reversal of 8622221400 is 41222268.

It is a happy number.

8622221400 is a `hidden beast` number, since 8 + 622 + 22 + 14 + 0 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (8622221383) and next prime (8622221417).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 160836 + ... + 207635.

It is an arithmetic number, because the mean of its divisors is an integer number (216554065).

Almost surely, 2^8622221400 is an apocalyptic number.

It is an amenable number.

8622221400 is an abundant number, since it is smaller than the sum of its proper divisors (22561563960).

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

8622221400 is a wasteful number, since it uses less digits than its factorization.

8622221400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368506 (or 368494 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 8622221400 is about 92855.9174204854. The cubic root of 8622221400 is about 2050.5627168291.

Adding to 8622221400 its reverse (41222268), we get a palindrome (8663443668).

The spelling of 8622221400 in words is "eight billion, six hundred twenty-two million, two hundred twenty-one thousand, four hundred".