12000012222123 has 6 divisors (see below), whose sum is σ = 17333350987524. Its totient is φ = 8000008148076.

The previous prime is 12000012222097. The next prime is 12000012222137. The reversal of 12000012222123 is 32122221000021.

It is not a de Polignac number, because 12000012222123 - 2⁵ = 12000012222091 is a prime.

It is a super-2 number, since 2×12000012222123² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12000012222096 and 12000012222105.

It is not an unprimeable number, because it can be changed into a prime (12000012222323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 666667345665 + ... + 666667345682.

It is an arithmetic number, because the mean of its divisors is an integer number (2888891831254).

Almost surely, 2^{12000012222123} is an apocalyptic number.

12000012222123 is a deficient number, since it is larger than the sum of its proper divisors (5333338765401).

12000012222123 is a wasteful number, since it uses less digits than its factorization.

12000012222123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333334691353 (or 1333334691350 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12000012222123 its reverse (32122221000021), we get a palindrome (44122233222144).

The spelling of 12000012222123 in words is "twelve trillion, twelve million, two hundred twenty-two thousand, one hundred twenty-three".