2211221112000 has 224 divisors, whose sum is σ = 7316733265920. Its totient is φ = 588424883200.

The previous prime is 2211221111999. The next prime is 2211221112017. The reversal of 2211221112000 is 2111221122.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11399827 + ... + 11592173.

Almost surely, 2^{2211221112000} is an apocalyptic number.

2211221112000 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 2211221112000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3658366632960).

2211221112000 is an abundant number, since it is smaller than the sum of its proper divisors (5105512153920).

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

2211221112000 is a wasteful number, since it uses less digits than its factorization.

2211221112000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192856 (or 192836 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2211221112000 its reverse (2111221122), we get a palindrome (2213332333122).

The spelling of 2211221112000 in words is "two trillion, two hundred eleven billion, two hundred twenty-one million, one hundred twelve thousand".