1222232200 has 96 divisors (see below), whose sum is σ = 3302913600. Its totient is φ = 411920640.

The previous prime is 1222232189. The next prime is 1222232233. The reversal of 1222232200 is 22322221.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75202 + ... + 89998.

It is an arithmetic number, because the mean of its divisors is an integer number (34405350).

Almost surely, 2^1222232200 is an apocalyptic number.

1222232200 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 1222232200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1651456800).

1222232200 is an abundant number, since it is smaller than the sum of its proper divisors (2080681400).

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

1222232200 is a wasteful number, since it uses less digits than its factorization.

1222232200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14879 (or 14870 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1222232200 is about 34960.4376402813. The cubic root of 1222232200 is about 1069.1810194511.

Adding to 1222232200 its reverse (22322221), we get a palindrome (1244554421).

It can be divided in two parts, 122 and 2232200, that added together give a palindrome (2232322).

The spelling of 1222232200 in words is "one billion, two hundred twenty-two million, two hundred thirty-two thousand, two hundred".