11212220120000 has 560 divisors, whose sum is σ = 31437295845120. Its totient is φ = 3943833600000.

The previous prime is 11212220119967. The next prime is 11212220120081. The reversal of 11212220120000 is 2102221211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 611310830 + ... + 611329170.

Almost surely, 2^{11212220120000} is an apocalyptic number.

11212220120000 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 11212220120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15718647922560).

11212220120000 is an abundant number, since it is smaller than the sum of its proper divisors (20225075725120).

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

11212220120000 is a wasteful number, since it uses less digits than its factorization.

11212220120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18450 (or 18425 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11212220120000 its reverse (2102221211), we get a palindrome (11214322341211).

The spelling of 11212220120000 in words is "eleven trillion, two hundred twelve billion, two hundred twenty million, one hundred twenty thousand".