212221022099 has 2 divisors, whose sum is σ = 212221022100. Its totient is φ = 212221022098.

The previous prime is 212221022093. The next prime is 212221022161. The reversal of 212221022099 is 990220122212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212221022099 is a prime.

It is not a weakly prime, because it can be changed into another prime (212221022093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106110511049 + 106110511050.

It is an arithmetic number, because the mean of its divisors is an integer number (106110511050).

Almost surely, 2^212221022099 is an apocalyptic number.

212221022099 is a deficient number, since it is larger than the sum of its proper divisors (1).

212221022099 is an equidigital number, since it uses as much as digits as its factorization.

212221022099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The spelling of 212221022099 in words is "two hundred twelve billion, two hundred twenty-one million, twenty-two thousand, ninety-nine".