12001122023 has 16 divisors (see below), whose sum is σ = 13566220800. Its totient is φ = 10521463680.

The previous prime is 12001122017. The next prime is 12001122043. The reversal of 12001122023 is 32022110021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12001122023 - 2¹⁸ = 12000859879 is a prime.

It is a super-2 number, since 2×12001122023² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12001121989 and 12001122007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001122043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123218 + ... + 197951.

It is an arithmetic number, because the mean of its divisors is an integer number (847888800).

Almost surely, 2^12001122023 is an apocalyptic number.

12001122023 is a deficient number, since it is larger than the sum of its proper divisors (1565098777).

12001122023 is a wasteful number, since it uses less digits than its factorization.

12001122023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321302.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12001122023 its reverse (32022110021), we get a palindrome (44023232044).

The spelling of 12001122023 in words is "twelve billion, one million, one hundred twenty-two thousand, twenty-three".