12211211020000 has 120 divisors (see below), whose sum is σ = 30094798063176. Its totient is φ = 4875804096000.

The previous prime is 12211211019989. The next prime is 12211211020033. The reversal of 12211211020000 is 2011211221.

It is a super-2 number, since 2×12211211020000² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10717762 + ... + 11802238.

Almost surely, 2^{12211211020000} is an apocalyptic number.

12211211020000 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 12211211020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15047399031588).

12211211020000 is an abundant number, since it is smaller than the sum of its proper divisors (17883587043176).

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

12211211020000 is an equidigital number, since it uses as much as digits as its factorization.

12211211020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1085070 (or 1085047 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12211211020000 its reverse (2011211221), we get a palindrome (12213222231221).

The spelling of 12211211020000 in words is "twelve trillion, two hundred eleven billion, two hundred eleven million, twenty thousand".