11222155444 has 12 divisors (see below), whose sum is σ = 19665352000. Its totient is φ = 5603483448.

The previous prime is 11222155397. The next prime is 11222155453. The reversal of 11222155444 is 44455122211.

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, 1895244 + ... + 1901155.

Almost surely, 2^11222155444 is an apocalyptic number.

It is an amenable number.

11222155444 is a deficient number, since it is larger than the sum of its proper divisors (8443196556).

11222155444 is a wasteful number, since it uses less digits than its factorization.

11222155444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3797142 (or 3797140 counting only the distinct ones).

The product of its digits is 12800, while the sum is 31.

Adding to 11222155444 its reverse (44455122211), we get a palindrome (55677277655).

The spelling of 11222155444 in words is "eleven billion, two hundred twenty-two million, one hundred fifty-five thousand, four hundred forty-four".