221111201120000 has 360 divisors, whose sum is σ = 554797132675632. Its totient is φ = 87920640000000.

The previous prime is 221111201119943. The next prime is 221111201120003. The reversal of 221111201120000 is 21102111122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221111201120003) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 21726554912 + ... + 21726565088.

Almost surely, 2^{221111201120000} is an apocalyptic number.

221111201120000 is a gapful number since it is divisible by the number (20) 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 221111201120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277398566337816).

221111201120000 is an abundant number, since it is smaller than the sum of its proper divisors (333685931555632).

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

221111201120000 is an equidigital number, since it uses as much as digits as its factorization.

221111201120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11005 (or 10976 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 221111201120000 its reverse (21102111122), we get a palindrome (221132303231122).

The spelling of 221111201120000 in words is "two hundred twenty-one trillion, one hundred eleven billion, two hundred one million, one hundred twenty thousand".