111221122102112 has 48 divisors (see below), whose sum is σ = 238873574394000. Its totient is φ = 50554857162240.

The previous prime is 111221122102067. The next prime is 111221122102117. The reversal of 111221122102112 is 211201221122111.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111221122102117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125811014 + ... + 126691962.

It is an arithmetic number, because the mean of its divisors is an integer number (4976532799875).

Almost surely, 2^{111221122102112} is an apocalyptic number.

It is an amenable number.

111221122102112 is an abundant number, since it is smaller than the sum of its proper divisors (127652452291888).

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

111221122102112 is a wasteful number, since it uses less digits than its factorization.

111221122102112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239639 (or 1239631 counting only the distinct ones).

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

Adding to 111221122102112 its reverse (211201221122111), we get a palindrome (322422343224223).

The spelling of 111221122102112 in words is "one hundred eleven trillion, two hundred twenty-one billion, one hundred twenty-two million, one hundred two thousand, one hundred twelve".