1222183800 has 144 divisors (see below), whose sum is σ = 4172162280. Its totient is φ = 320544000.

The previous prime is 1222183793. The next prime is 1222183811. The reversal of 1222183800 is 83812221.

It is a congruent number.

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, 104235 + ... + 115365.

Almost surely, 2^1222183800 is an apocalyptic number.

1222183800 is a gapful number since it is divisible by the number (10) 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 1222183800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2086081140).

1222183800 is an abundant number, since it is smaller than the sum of its proper divisors (2949978480).

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

1222183800 is a wasteful number, since it uses less digits than its factorization.

1222183800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11214 (or 11202 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 1222183800 is about 34959.7454224140. The cubic root of 1222183800 is about 1069.1669061906.

The spelling of 1222183800 in words is "one billion, two hundred twenty-two million, one hundred eighty-three thousand, eight hundred".