212055113 has 2 divisors, whose sum is σ = 212055114. Its totient is φ = 212055112.

The previous prime is 212055089. The next prime is 212055131. The reversal of 212055113 is 311550212.

It is a happy number.

Together with next prime (212055131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 176438089 + 35617024 = 13283^2 + 5968^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212055113 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (212055133) 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, 106027556 + 106027557.

It is an arithmetic number, because the mean of its divisors is an integer number (106027557).

Almost surely, 2^212055113 is an apocalyptic number.

It is an amenable number.

212055113 is a deficient number, since it is larger than the sum of its proper divisors (1).

212055113 is an equidigital number, since it uses as much as digits as its factorization.

212055113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 212055113 is about 14562.1122437646. The cubic root of 212055113 is about 596.3248617450.

The spelling of 212055113 in words is "two hundred twelve million, fifty-five thousand, one hundred thirteen".