11111221244344 has 64 divisors (see below), whose sum is σ = 22765126991040. Its totient is φ = 5053136901120.

The previous prime is 11111221244317. The next prime is 11111221244371. The reversal of 11111221244344 is 44344212211111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11111221244317) and next prime (11111221244371).

It is a super-2 number, since 2×11111221244344² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12514954 + ... + 13373350.

It is an arithmetic number, because the mean of its divisors is an integer number (355705109235).

Almost surely, 2^{11111221244344} 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 11111221244344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11382563495520).

11111221244344 is an abundant number, since it is smaller than the sum of its proper divisors (11653905746696).

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

11111221244344 is a wasteful number, since it uses less digits than its factorization.

11111221244344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860240 (or 860236 counting only the distinct ones).

The product of its digits is 6144, while the sum is 31.

Adding to 11111221244344 its reverse (44344212211111), we get a palindrome (55455433455455).

The spelling of 11111221244344 in words is "eleven trillion, one hundred eleven billion, two hundred twenty-one million, two hundred forty-four thousand, three hundred forty-four".