2311222044 has 12 divisors (see below), whose sum is σ = 5392851464. Its totient is φ = 770407344.

The previous prime is 2311222037. The next prime is 2311222061. The reversal of 2311222044 is 4402221132.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 2311222044.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96300907 + ... + 96300930.

Almost surely, 2^2311222044 is an apocalyptic number.

It is an amenable number.

2311222044 is an abundant number, since it is smaller than the sum of its proper divisors (3081629420).

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

2311222044 is a wasteful number, since it uses less digits than its factorization.

2311222044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192601844 (or 192601842 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2311222044 is about 48075.1707641273. The cubic root of 2311222044 is about 1322.1494754171.

Adding to 2311222044 its reverse (4402221132), we get a palindrome (6713443176).

The spelling of 2311222044 in words is "two billion, three hundred eleven million, two hundred twenty-two thousand, forty-four".