1201112211149 has 2 divisors, whose sum is σ = 1201112211150. Its totient is φ = 1201112211148.

The previous prime is 1201112211119. The next prime is 1201112211197. The reversal of 1201112211149 is 9411122111021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1200519045124 + 593166025 = 1095682^2 + 24355^2 .

It is an emirp because it is prime and its reverse (9411122111021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1201112211149 - 2⁴⁰ = 101600583373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201112211119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600556105574 + 600556105575.

It is an arithmetic number, because the mean of its divisors is an integer number (600556105575).

Almost surely, 2^{1201112211149} is an apocalyptic number.

It is an amenable number.

1201112211149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201112211149 is an equidigital number, since it uses as much as digits as its factorization.

1201112211149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 26.

The spelling of 1201112211149 in words is "one trillion, two hundred one billion, one hundred twelve million, two hundred eleven thousand, one hundred forty-nine".