12220011212200 has 72 divisors (see below), whose sum is σ = 31229198136990. Its totient is φ = 4443640432000.

The previous prime is 12220011212191. The next prime is 12220011212231. The reversal of 12220011212200 is 221211002221.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 7015325633316 + 5204685578884 = 2648646^2 + 2281378^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 252455371 + ... + 252503770.

Almost surely, 2^{12220011212200} is an apocalyptic number.

12220011212200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220011212200 is an abundant number, since it is smaller than the sum of its proper divisors (19009186924790).

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

12220011212200 is a wasteful number, since it uses less digits than its factorization.

12220011212200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504959179 (or 504959159 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12220011212200 its reverse (221211002221), we get a palindrome (12441222214421).

The spelling of 12220011212200 in words is "twelve trillion, two hundred twenty billion, eleven million, two hundred twelve thousand, two hundred".