2112220031 has 2 divisors, whose sum is σ = 2112220032. Its totient is φ = 2112220030.

The previous prime is 2112219917. The next prime is 2112220039. The reversal of 2112220031 is 1300222112.

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-2112220031 is a prime.

It is a super-2 number, since 2×2112220031² = 8922946918715281922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2112219988 and 2112220015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2112220039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056110015 + 1056110016.

It is an arithmetic number, because the mean of its divisors is an integer number (1056110016).

Almost surely, 2^2112220031 is an apocalyptic number.

2112220031 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112220031 is an equidigital number, since it uses as much as digits as its factorization.

2112220031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2112220031 is about 45958.8950150023. The cubic root of 2112220031 is about 1283.0582858164.

Adding to 2112220031 its reverse (1300222112), we get a palindrome (3412442143).

The spelling of 2112220031 in words is "two billion, one hundred twelve million, two hundred twenty thousand, thirty-one".