1211022010199 has 2 divisors, whose sum is σ = 1211022010200. Its totient is φ = 1211022010198.

The previous prime is 1211022010193. The next prime is 1211022010249. The reversal of 1211022010199 is 9910102201121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1211022010199 - 2⁴ = 1211022010183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211022010193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605511005099 + 605511005100.

It is an arithmetic number, because the mean of its divisors is an integer number (605511005100).

Almost surely, 2^{1211022010199} is an apocalyptic number.

1211022010199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211022010199 is an equidigital number, since it uses as much as digits as its factorization.

1211022010199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 29.

The spelling of 1211022010199 in words is "one trillion, two hundred eleven billion, twenty-two million, ten thousand, one hundred ninety-nine".