12211122023 has 4 divisors (see below), whose sum is σ = 12216261600. Its totient is φ = 12205982448.

The previous prime is 12211122013. The next prime is 12211122043. The reversal of 12211122023 is 32022111221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12211122023 - 2¹⁸ = 12210859879 is a prime.

It is a super-2 number, since 2×12211122023² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12211121992 and 12211122010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211122013) 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, 2566223 + ... + 2570976.

It is an arithmetic number, because the mean of its divisors is an integer number (3054065400).

Almost surely, 2^12211122023 is an apocalyptic number.

12211122023 is a deficient number, since it is larger than the sum of its proper divisors (5139577).

12211122023 is an equidigital number, since it uses as much as digits as its factorization.

12211122023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5139576.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12211122023 its reverse (32022111221), we get a palindrome (44233233244).

The spelling of 12211122023 in words is "twelve billion, two hundred eleven million, one hundred twenty-two thousand, twenty-three".