2231212200 has 384 divisors, whose sum is σ = 8228044800. Its totient is φ = 489646080.

The previous prime is 2231212187. The next prime is 2231212211. The reversal of 2231212200 is 22121322.

It is a happy number.

It is a super-3 number, since 3×2231212200³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2231212200.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 17568537 + ... + 17568663.

It is an arithmetic number, because the mean of its divisors is an integer number (21427200).

Almost surely, 2^2231212200 is an apocalyptic number.

2231212200 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 2231212200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4114022400).

2231212200 is an abundant number, since it is smaller than the sum of its proper divisors (5996832600).

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

2231212200 is a wasteful number, since it uses less digits than its factorization.

2231212200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289 (or 280 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2231212200 is about 47235.7089499036. The cubic root of 2231212200 is about 1306.7132413752.

Adding to 2231212200 its reverse (22121322), we get a palindrome (2253333522).

The spelling of 2231212200 in words is "two billion, two hundred thirty-one million, two hundred twelve thousand, two hundred".