22156234323300 has 864 divisors, whose sum is σ = 87526257960960. Its totient is φ = 4553891020800.

The previous prime is 22156234323271. The next prime is 22156234323371. The reversal of 22156234323300 is 332343265122.

It is a happy number.

22156234323300 is a `hidden beast` number, since 2 + 2 + 1 + 5 + 6 + 2 + 343 + 2 + 3 + 300 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 10057299999 + ... + 10057302201.

Almost surely, 2^{22156234323300} is an apocalyptic number.

22156234323300 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 22156234323300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43763128980480).

22156234323300 is an abundant number, since it is smaller than the sum of its proper divisors (65370023637660).

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

22156234323300 is a wasteful number, since it uses less digits than its factorization.

22156234323300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3753 (or 3743 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 36.

Adding to 22156234323300 its reverse (332343265122), we get a palindrome (22488577588422).

The spelling of 22156234323300 in words is "twenty-two trillion, one hundred fifty-six billion, two hundred thirty-four million, three hundred twenty-three thousand, three hundred".