1211211022159 has 2 divisors, whose sum is σ = 1211211022160. Its totient is φ = 1211211022158.

The previous prime is 1211211022093. The next prime is 1211211022169. The reversal of 1211211022159 is 9512201121121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1211211022159 - 2¹¹ = 1211211020111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211211022169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605605511079 + 605605511080.

It is an arithmetic number, because the mean of its divisors is an integer number (605605511080).

Almost surely, 2^{1211211022159} is an apocalyptic number.

1211211022159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211211022159 is an equidigital number, since it uses as much as digits as its factorization.

1211211022159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 28.

The spelling of 1211211022159 in words is "one trillion, two hundred eleven billion, two hundred eleven million, twenty-two thousand, one hundred fifty-nine".