1222121122199 has 2 divisors, whose sum is σ = 1222121122200. Its totient is φ = 1222121122198.

The previous prime is 1222121122193. The next prime is 1222121122259. The reversal of 1222121122199 is 9912211212221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222121122199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222121122193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611060561099 + 611060561100.

It is an arithmetic number, because the mean of its divisors is an integer number (611060561100).

Almost surely, 2^{1222121122199} is an apocalyptic number.

1222121122199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222121122199 is an equidigital number, since it uses as much as digits as its factorization.

1222121122199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 35.

The spelling of 1222121122199 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-one million, one hundred twenty-two thousand, one hundred ninety-nine".