12042220031 has 2 divisors, whose sum is σ = 12042220032. Its totient is φ = 12042220030.

The previous prime is 12042220013. The next prime is 12042220037. The reversal of 12042220031 is 13002224021.

Together with previous prime (12042220013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (13002224021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12042220031 - 2⁶ = 12042219967 is a prime.

It is a super-2 number, since 2×12042220031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12042219991 and 12042220009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12042220037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6021110015 + 6021110016.

It is an arithmetic number, because the mean of its divisors is an integer number (6021110016).

Almost surely, 2^12042220031 is an apocalyptic number.

12042220031 is a deficient number, since it is larger than the sum of its proper divisors (1).

12042220031 is an equidigital number, since it uses as much as digits as its factorization.

12042220031 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 17.

Adding to 12042220031 its reverse (13002224021), we get a palindrome (25044444052).

The spelling of 12042220031 in words is "twelve billion, forty-two million, two hundred twenty thousand, thirty-one".