111121022221112 has 32 divisors (see below), whose sum is σ = 208809131865600. Its totient is φ = 55438697359584.

The previous prime is 111121022221091. The next prime is 111121022221159. The reversal of 111121022221112 is 211122220121111.

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, 1167839 + ... + 14953457.

It is an arithmetic number, because the mean of its divisors is an integer number (6525285370800).

Almost surely, 2^{111121022221112} is an apocalyptic number.

It is an amenable number.

111121022221112 is a deficient number, since it is larger than the sum of its proper divisors (97688109644488).

111121022221112 is a wasteful number, since it uses less digits than its factorization.

111121022221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13787835 (or 13787831 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 111121022221112 its reverse (211122220121111), we get a palindrome (322243242342223).

The spelling of 111121022221112 in words is "one hundred eleven trillion, one hundred twenty-one billion, twenty-two million, two hundred twenty-one thousand, one hundred twelve".