1210120202191 has 2 divisors, whose sum is σ = 1210120202192. Its totient is φ = 1210120202190.

The previous prime is 1210120202189. The next prime is 1210120202201. The reversal of 1210120202191 is 1912020210121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1210120202191 - 2¹ = 1210120202189 is a prime.

It is a super-3 number, since 3×1210120202191³ (a number of 37 digits) contains 333 as substring.

Together with 1210120202189, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1210120202131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605060101095 + 605060101096.

It is an arithmetic number, because the mean of its divisors is an integer number (605060101096).

Almost surely, 2^{1210120202191} is an apocalyptic number.

1210120202191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210120202191 is an equidigital number, since it uses as much as digits as its factorization.

1210120202191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 1210120202191 in words is "one trillion, two hundred ten billion, one hundred twenty million, two hundred two thousand, one hundred ninety-one".