212221122899 has 2 divisors, whose sum is σ = 212221122900. Its totient is φ = 212221122898.

The previous prime is 212221122823. The next prime is 212221122901. The reversal of 212221122899 is 998221122212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212221122899 - 2²⁰ = 212220074323 is a prime.

Together with 212221122901, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (212221122809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106110561449 + 106110561450.

It is an arithmetic number, because the mean of its divisors is an integer number (106110561450).

Almost surely, 2^212221122899 is an apocalyptic number.

212221122899 is a deficient number, since it is larger than the sum of its proper divisors (1).

212221122899 is an equidigital number, since it uses as much as digits as its factorization.

212221122899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 41.

The spelling of 212221122899 in words is "two hundred twelve billion, two hundred twenty-one million, one hundred twenty-two thousand, eight hundred ninety-nine".