212122040321383 has 2 divisors, whose sum is σ = 212122040321384. Its totient is φ = 212122040321382.

The previous prime is 212122040321381. The next prime is 212122040321419. The reversal of 212122040321383 is 383123040221212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212122040321383 - 2¹ = 212122040321381 is a prime.

Together with 212122040321381, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212122040321381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106061020160691 + 106061020160692.

It is an arithmetic number, because the mean of its divisors is an integer number (106061020160692).

Almost surely, 2^{212122040321383} is an apocalyptic number.

212122040321383 is a deficient number, since it is larger than the sum of its proper divisors (1).

212122040321383 is an equidigital number, since it uses as much as digits as its factorization.

212122040321383 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 34.

Adding to 212122040321383 its reverse (383123040221212), we get a palindrome (595245080542595).

The spelling of 212122040321383 in words is "two hundred twelve trillion, one hundred twenty-two billion, forty million, three hundred twenty-one thousand, three hundred eighty-three".