12022111123 has 4 divisors (see below), whose sum is σ = 13115030328. Its totient is φ = 10929191920.

The previous prime is 12022111039. The next prime is 12022111159. The reversal of 12022111123 is 32111122021.

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 12022111123 - 2¹³ = 12022102931 is a prime.

It is a super-2 number, since 2×12022111123² (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 = 12022111097 and 12022111106.

It is not an unprimeable number, because it can be changed into a prime (12022151123) 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, 546459586 + ... + 546459607.

It is an arithmetic number, because the mean of its divisors is an integer number (3278757582).

Almost surely, 2^12022111123 is an apocalyptic number.

12022111123 is a deficient number, since it is larger than the sum of its proper divisors (1092919205).

12022111123 is a wasteful number, since it uses less digits than its factorization.

12022111123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092919204.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 12022111123 its reverse (32111122021), we get a palindrome (44133233144).

The spelling of 12022111123 in words is "twelve billion, twenty-two million, one hundred eleven thousand, one hundred twenty-three".