2111204331444 has 24 divisors (see below), whose sum is σ = 5305077551200. Its totient is φ = 649601332704.

The previous prime is 2111204331413. The next prime is 2111204331497. The reversal of 2111204331444 is 4441334021112.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6766680394 + ... + 6766680705.

Almost surely, 2^{2111204331444} is an apocalyptic number.

It is an amenable number.

2111204331444 is an abundant number, since it is smaller than the sum of its proper divisors (3193873219756).

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

2111204331444 is a wasteful number, since it uses less digits than its factorization.

2111204331444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13533361119 (or 13533361117 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 2111204331444 its reverse (4441334021112), we get a palindrome (6552538352556).

The spelling of 2111204331444 in words is "two trillion, one hundred eleven billion, two hundred four million, three hundred thirty-one thousand, four hundred forty-four".