1212012010291 has 2 divisors, whose sum is σ = 1212012010292. Its totient is φ = 1212012010290.

The previous prime is 1212012010171. The next prime is 1212012010309. The reversal of 1212012010291 is 1920102102121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1212012010291 - 2⁷ = 1212012010163 is a prime.

It is a super-2 number, since 2×1212012010291² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1212012011291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606006005145 + 606006005146.

It is an arithmetic number, because the mean of its divisors is an integer number (606006005146).

Almost surely, 2^{1212012010291} is an apocalyptic number.

1212012010291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212012010291 is an equidigital number, since it uses as much as digits as its factorization.

1212012010291 is an evil number, because the sum of its binary digits is even.

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

The spelling of 1212012010291 in words is "one trillion, two hundred twelve billion, twelve million, ten thousand, two hundred ninety-one".