2212831 has 2 divisors, whose sum is σ = 2212832. Its totient is φ = 2212830.

The previous prime is 2212817. The next prime is 2212871. The reversal of 2212831 is 1382122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2212831 - 2¹⁹ = 1688543 is a prime.

It is a super-2 number, since 2×2212831² = 9793242069122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2212799 and 2212808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2212871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106415 + 1106416.

It is an arithmetic number, because the mean of its divisors is an integer number (1106416).

2^2212831 is an apocalyptic number.

2212831 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212831 is an equidigital number, since it uses as much as digits as its factorization.

2212831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192, while the sum is 19.

The square root of 2212831 is about 1487.5587383361. The cubic root of 2212831 is about 130.3115015154.

Adding to 2212831 its reverse (1382122), we get a palindrome (3594953).

It can be divided in two parts, 22 and 12831, that multiplied together give a palindrome (282282).

The spelling of 2212831 in words is "two million, two hundred twelve thousand, eight hundred thirty-one".