12011022221123 has 2 divisors, whose sum is σ = 12011022221124. Its totient is φ = 12011022221122.

The previous prime is 12011022221071. The next prime is 12011022221183. The reversal of 12011022221123 is 32112222011021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12011022221123 - 2²⁰ = 12011021172547 is a prime.

It is a super-2 number, since 2×12011022221123² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12011022221095 and 12011022221104.

It is not a weakly prime, because it can be changed into another prime (12011022221183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005511110561 + 6005511110562.

It is an arithmetic number, because the mean of its divisors is an integer number (6005511110562).

Almost surely, 2^{12011022221123} is an apocalyptic number.

12011022221123 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011022221123 is an equidigital number, since it uses as much as digits as its factorization.

12011022221123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 12011022221123 its reverse (32112222011021), we get a palindrome (44123244232144).

The spelling of 12011022221123 in words is "twelve trillion, eleven billion, twenty-two million, two hundred twenty-one thousand, one hundred twenty-three".