2111223442000 has 160 divisors (see below), whose sum is σ = 5277784771584. Its totient is φ = 815980608000.

The previous prime is 2111223441991. The next prime is 2111223442001. The reversal of 2111223442000 is 2443221112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111223442001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40459927 + ... + 40512073.

Almost surely, 2^{2111223442000} is an apocalyptic number.

2111223442000 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 2111223442000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2638892385792).

2111223442000 is an abundant number, since it is smaller than the sum of its proper divisors (3166561329584).

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

2111223442000 is a wasteful number, since it uses less digits than its factorization.

2111223442000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52854 (or 52838 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 2111223442000 its reverse (2443221112), we get a palindrome (2113666663112).

The spelling of 2111223442000 in words is "two trillion, one hundred eleven billion, two hundred twenty-three million, four hundred forty-two thousand".