111121102212102 has 64 divisors (see below), whose sum is σ = 248843406873600. Its totient is φ = 36754275186720.

The previous prime is 111121102212077. The next prime is 111121102212151. The reversal of 111121102212102 is 201212201121111.

It is a happy number.

111121102212102 is a `hidden beast` number, since 11 + 11 + 211 + 0 + 221 + 210 + 2 = 666.

It is a super-3 number, since 3×111121102212102³ (a number of 43 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77721024 + ... + 79137852.

It is an arithmetic number, because the mean of its divisors is an integer number (3888178232400).

Almost surely, 2^{111121102212102} is an apocalyptic number.

111121102212102 is an abundant number, since it is smaller than the sum of its proper divisors (137722304661498).

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

111121102212102 is a wasteful number, since it uses less digits than its factorization.

111121102212102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1428058 (or 1428052 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 111121102212102 its reverse (201212201121111), we get a palindrome (312333303333213).

The spelling of 111121102212102 in words is "one hundred eleven trillion, one hundred twenty-one billion, one hundred two million, two hundred twelve thousand, one hundred two".