221112113123 has 8 divisors (see below), whose sum is σ = 241220789040. Its totient is φ = 201004699680.

The previous prime is 221112113119. The next prime is 221112113191. The reversal of 221112113123 is 321311211122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221112113123 - 2² = 221112113119 is a prime.

It is a super-3 number, since 3×221112113123³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221112113095 and 221112113104.

It is not an unprimeable number, because it can be changed into a prime (221112113723) 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, 71213 + ... + 668801.

It is an arithmetic number, because the mean of its divisors is an integer number (30152598630).

Almost surely, 2^221112113123 is an apocalyptic number.

221112113123 is a deficient number, since it is larger than the sum of its proper divisors (20108675917).

221112113123 is a wasteful number, since it uses less digits than its factorization.

221112113123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631237.

The product of its digits is 144, while the sum is 20.

Adding to 221112113123 its reverse (321311211122), we get a palindrome (542423324245).

The spelling of 221112113123 in words is "two hundred twenty-one billion, one hundred twelve million, one hundred thirteen thousand, one hundred twenty-three".