22206504900 has 144 divisors (see below), whose sum is σ = 64876097664. Its totient is φ = 5864401920.

The previous prime is 22206504893. The next prime is 22206504907. The reversal of 22206504900 is 940560222.

It is an interprime number because it is at equal distance from previous prime (22206504893) and next prime (22206504907).

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

It is not an unprimeable number, because it can be changed into a prime (22206504907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16244017 + ... + 16245383.

It is an arithmetic number, because the mean of its divisors is an integer number (450528456).

Almost surely, 2^22206504900 is an apocalyptic number.

22206504900 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 22206504900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32438048832).

22206504900 is an abundant number, since it is smaller than the sum of its proper divisors (42669592764).

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

22206504900 is a wasteful number, since it uses less digits than its factorization.

22206504900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1870 (or 1863 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 22206504900 in words is "twenty-two billion, two hundred six million, five hundred four thousand, nine hundred".