111222010556 has 6 divisors (see below), whose sum is σ = 194638518480. Its totient is φ = 55611005276.

The previous prime is 111222010507. The next prime is 111222010577. The reversal of 111222010556 is 655010222111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13902751316 + ... + 13902751323.

It is an arithmetic number, because the mean of its divisors is an integer number (32439753080).

Almost surely, 2^111222010556 is an apocalyptic number.

It is an amenable number.

111222010556 is a deficient number, since it is larger than the sum of its proper divisors (83416507924).

111222010556 is a wasteful number, since it uses less digits than its factorization.

111222010556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27805502643 (or 27805502641 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 26.

Adding to 111222010556 its reverse (655010222111), we get a palindrome (766232232667).

The spelling of 111222010556 in words is "one hundred eleven billion, two hundred twenty-two million, ten thousand, five hundred fifty-six".