1101211010191 has 2 divisors, whose sum is σ = 1101211010192. Its totient is φ = 1101211010190.

The previous prime is 1101211010153. The next prime is 1101211010213. The reversal of 1101211010191 is 1910101121011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1101211010191 - 2³³ = 1092621075599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101211010101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550605505095 + 550605505096.

It is an arithmetic number, because the mean of its divisors is an integer number (550605505096).

Almost surely, 2^{1101211010191} is an apocalyptic number.

1101211010191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101211010191 is an equidigital number, since it uses as much as digits as its factorization.

1101211010191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 19.

The spelling of 1101211010191 in words is "one trillion, one hundred one billion, two hundred eleven million, ten thousand, one hundred ninety-one".