22003144200 has 144 divisors (see below), whose sum is σ = 78240700980. Its totient is φ = 5522350080.

The previous prime is 22003144159. The next prime is 22003144231. The reversal of 22003144200 is 244130022.

22003144200 is a `hidden beast` number, since 220 + 0 + 3 + 1 + 442 + 0 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 12253161636 + 9749982564 = 110694^2 + 98742^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 328929 + ... + 390128.

Almost surely, 2^22003144200 is an apocalyptic number.

22003144200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22003144200 is an abundant number, since it is smaller than the sum of its proper divisors (56237556780).

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

22003144200 is a wasteful number, since it uses less digits than its factorization.

22003144200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719096 (or 719084 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 22003144200 its reverse (244130022), we get a palindrome (22247274222).

The spelling of 22003144200 in words is "twenty-two billion, three million, one hundred forty-four thousand, two hundred".