212220121199 has 2 divisors, whose sum is σ = 212220121200. Its totient is φ = 212220121198.

The previous prime is 212220121051. The next prime is 212220121229. The reversal of 212220121199 is 991121022212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212220121199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212220121999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106110060599 + 106110060600.

It is an arithmetic number, because the mean of its divisors is an integer number (106110060600).

Almost surely, 2^212220121199 is an apocalyptic number.

212220121199 is a deficient number, since it is larger than the sum of its proper divisors (1).

212220121199 is an equidigital number, since it uses as much as digits as its factorization.

212220121199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 32.

The spelling of 212220121199 in words is "two hundred twelve billion, two hundred twenty million, one hundred twenty-one thousand, one hundred ninety-nine".