22000012031 has 2 divisors, whose sum is σ = 22000012032. Its totient is φ = 22000012030.

The previous prime is 22000011977. The next prime is 22000012043. The reversal of 22000012031 is 13021000022.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22000012031 is a prime.

It is a super-2 number, since 2×22000012031² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22000017031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11000006015 + 11000006016.

It is an arithmetic number, because the mean of its divisors is an integer number (11000006016).

Almost surely, 2^22000012031 is an apocalyptic number.

22000012031 is a deficient number, since it is larger than the sum of its proper divisors (1).

22000012031 is an equidigital number, since it uses as much as digits as its factorization.

22000012031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 22000012031 its reverse (13021000022), we get a palindrome (35021012053).

The spelling of 22000012031 in words is "twenty-two billion, twelve thousand, thirty-one".