12022211200 has 48 divisors (see below), whose sum is σ = 29698626510. Its totient is φ = 4808883200.

The previous prime is 12022211197. The next prime is 12022211207. The reversal of 12022211200 is 211222021.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 11373795904 + 648415296 = 106648^2 + 25464^2 .

It is not an unprimeable number, because it can be changed into a prime (12022211207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1875271 + ... + 1881670.

Almost surely, 2^12022211200 is an apocalyptic number.

12022211200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12022211200 is an abundant number, since it is smaller than the sum of its proper divisors (17676415310).

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

12022211200 is an equidigital number, since it uses as much as digits as its factorization.

12022211200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3756965 (or 3756948 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12022211200 its reverse (211222021), we get a palindrome (12233433221).

The spelling of 12022211200 in words is "twelve billion, twenty-two million, two hundred eleven thousand, two hundred".