2212111181244 has 144 divisors (see below), whose sum is σ = 5777119617696. Its totient is φ = 656429875200.

The previous prime is 2212111181243. The next prime is 2212111181251. The reversal of 2212111181244 is 4421811112122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212111181243) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 47182374 + ... + 47229234.

It is an arithmetic number, because the mean of its divisors is an integer number (40118886234).

Almost surely, 2^{2212111181244} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2212111181244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2888559808848).

2212111181244 is an abundant number, since it is smaller than the sum of its proper divisors (3565008436452).

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

2212111181244 is a wasteful number, since it uses less digits than its factorization.

2212111181244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47564 (or 47543 counting only the distinct ones).

The product of its digits is 2048, while the sum is 30.

Adding to 2212111181244 its reverse (4421811112122), we get a palindrome (6633922293366).

The spelling of 2212111181244 in words is "two trillion, two hundred twelve billion, one hundred eleven million, one hundred eighty-one thousand, two hundred forty-four".