12212102220200 has 96 divisors (see below), whose sum is σ = 28708162560000. Its totient is φ = 4830940074240.

The previous prime is 12212102220173. The next prime is 12212102220211. The reversal of 12212102220200 is 202220121221.

It is a happy number.

It is a super-2 number, since 2×12212102220200² (a number of 27 digits) contains 22 as substring.

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, 5651801 + ... + 7507799.

It is an arithmetic number, because the mean of its divisors is an integer number (299043360000).

Almost surely, 2^{12212102220200} is an apocalyptic number.

12212102220200 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 12212102220200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14354081280000).

12212102220200 is an abundant number, since it is smaller than the sum of its proper divisors (16496060339800).

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

12212102220200 is a wasteful number, since it uses less digits than its factorization.

12212102220200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856379 (or 1856370 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12212102220200 its reverse (202220121221), we get a palindrome (12414322341421).

The spelling of 12212102220200 in words is "twelve trillion, two hundred twelve billion, one hundred two million, two hundred twenty thousand, two hundred".