212214321391 has 2 divisors, whose sum is σ = 212214321392. Its totient is φ = 212214321390.

The previous prime is 212214321323. The next prime is 212214321413. The reversal of 212214321391 is 193123412212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212214321391 - 2²⁷ = 212080103663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212214321301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106107160695 + 106107160696.

It is an arithmetic number, because the mean of its divisors is an integer number (106107160696).

Almost surely, 2^212214321391 is an apocalyptic number.

212214321391 is a deficient number, since it is larger than the sum of its proper divisors (1).

212214321391 is an equidigital number, since it uses as much as digits as its factorization.

212214321391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 31.

The spelling of 212214321391 in words is "two hundred twelve billion, two hundred fourteen million, three hundred twenty-one thousand, three hundred ninety-one".