111211233102 has 48 divisors (see below), whose sum is σ = 242032001328. Its totient is φ = 36905431680.

The previous prime is 111211233101. The next prime is 111211233137. The reversal of 111211233102 is 201332112111.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111211233101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4613493 + ... + 4637535.

It is an arithmetic number, because the mean of its divisors is an integer number (5042333361).

Almost surely, 2^111211233102 is an apocalyptic number.

111211233102 is an abundant number, since it is smaller than the sum of its proper divisors (130820768226).

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

111211233102 is a wasteful number, since it uses less digits than its factorization.

111211233102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25185 (or 25182 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 111211233102 its reverse (201332112111), we get a palindrome (312543345213).

The spelling of 111211233102 in words is "one hundred eleven billion, two hundred eleven million, two hundred thirty-three thousand, one hundred two".