212121114311 has 2 divisors, whose sum is σ = 212121114312. Its totient is φ = 212121114310.

The previous prime is 212121114299. The next prime is 212121114407. The reversal of 212121114311 is 113411121212.

It is a happy number.

It is a m-pointer prime, because the next prime (212121114407) can be obtained adding 212121114311 to its product of digits (96).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212121114311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212121111311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106060557155 + 106060557156.

It is an arithmetic number, because the mean of its divisors is an integer number (106060557156).

Almost surely, 2^212121114311 is an apocalyptic number.

212121114311 is a deficient number, since it is larger than the sum of its proper divisors (1).

212121114311 is an equidigital number, since it uses as much as digits as its factorization.

212121114311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96, while the sum is 20.

Adding to 212121114311 its reverse (113411121212), we get a palindrome (325532235523).

The spelling of 212121114311 in words is "two hundred twelve billion, one hundred twenty-one million, one hundred fourteen thousand, three hundred eleven".