2212631 has 2 divisors, whose sum is σ = 2212632. Its totient is φ = 2212630.

The previous prime is 2212627. The next prime is 2212633. The reversal of 2212631 is 1362122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2212631 - 2² = 2212627 is a prime.

It is a super-2 number, since 2×2212631² = 9791471884322, which contains 22 as substring.

Together with 2212633, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2212633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106315 + 1106316.

It is an arithmetic number, because the mean of its divisors is an integer number (1106316).

2^2212631 is an apocalyptic number.

2212631 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212631 is an equidigital number, since it uses as much as digits as its factorization.

2212631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 17.

The square root of 2212631 is about 1487.4915125808. The cubic root of 2212631 is about 130.3075754608.

Adding to 2212631 its reverse (1362122), we get a palindrome (3574753).

The spelling of 2212631 in words is "two million, two hundred twelve thousand, six hundred thirty-one".