12221002210000 has 50 divisors (see below), whose sum is σ = 29588268474842. Its totient is φ = 4888400880000.

The previous prime is 12221002209973. The next prime is 12221002210037. The reversal of 12221002210000 is 1220012221.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 6696377605696 + 5524624604304 = 2587736^2 + 2350452^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 611040111 + ... + 611060110.

Almost surely, 2^{12221002210000} is an apocalyptic number.

12221002210000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12221002210000 is an abundant number, since it is smaller than the sum of its proper divisors (17367266264842).

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

12221002210000 is an equidigital number, since it uses as much as digits as its factorization.

12221002210000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222100249 (or 1222100228 counting only the distinct ones).

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

Adding to 12221002210000 its reverse (1220012221), we get a palindrome (12222222222221).

The spelling of 12221002210000 in words is "twelve trillion, two hundred twenty-one billion, two million, two hundred ten thousand".