12211022200 has 96 divisors (see below), whose sum is σ = 30651944400. Its totient is φ = 4497269760.

The previous prime is 12211022183. The next prime is 12211022237. The reversal of 12211022200 is 222011221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

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, 1057659 + ... + 1069141.

Almost surely, 2^12211022200 is an apocalyptic number.

12211022200 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 12211022200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15325972200).

12211022200 is an abundant number, since it is smaller than the sum of its proper divisors (18440922200).

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

12211022200 is a wasteful number, since it uses less digits than its factorization.

12211022200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11921 (or 11912 counting only the distinct ones).

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

Adding to 12211022200 its reverse (222011221), we get a palindrome (12433033421).

The spelling of 12211022200 in words is "twelve billion, two hundred eleven million, twenty-two thousand, two hundred".