1211002159 has 2 divisors, whose sum is σ = 1211002160. Its totient is φ = 1211002158.

The previous prime is 1211002043. The next prime is 1211002181. The reversal of 1211002159 is 9512001121.

It is an a-pointer prime, because the next prime (1211002181) can be obtained adding 1211002159 to its sum of digits (22).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1211002159 - 2¹⁵ = 1210969391 is a prime.

It is a super-2 number, since 2×1211002159² = 2933052458205322562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211000159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605501079 + 605501080.

It is an arithmetic number, because the mean of its divisors is an integer number (605501080).

Almost surely, 2^1211002159 is an apocalyptic number.

1211002159 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211002159 is an equidigital number, since it uses as much as digits as its factorization.

1211002159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 22.

The square root of 1211002159 is about 34799.4563032240. The cubic root of 1211002159 is about 1065.8963437044.

The spelling of 1211002159 in words is "one billion, two hundred eleven million, two thousand, one hundred fifty-nine".