111212322133 has 4 divisors (see below), whose sum is σ = 121322533248. Its totient is φ = 101102111020.

The previous prime is 111212322113. The next prime is 111212322157. The reversal of 111212322133 is 331223212111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111212322133 - 2¹⁷ = 111212191061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111212322113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5055105541 + ... + 5055105562.

It is an arithmetic number, because the mean of its divisors is an integer number (30330633312).

Almost surely, 2^111212322133 is an apocalyptic number.

It is an amenable number.

111212322133 is a deficient number, since it is larger than the sum of its proper divisors (10110211115).

111212322133 is a wasteful number, since it uses less digits than its factorization.

111212322133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10110211114.

The product of its digits is 432, while the sum is 22.

Adding to 111212322133 its reverse (331223212111), we get a palindrome (442435534244).

The spelling of 111212322133 in words is "one hundred eleven billion, two hundred twelve million, three hundred twenty-two thousand, one hundred thirty-three".