1212210120859 has 2 divisors, whose sum is σ = 1212210120860. Its totient is φ = 1212210120858.

The previous prime is 1212210120791. The next prime is 1212210120881. The reversal of 1212210120859 is 9580210122121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1212210120859 - 2¹⁵ = 1212210088091 is a prime.

It is a super-2 number, since 2×1212210120859² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1212210120889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606105060429 + 606105060430.

It is an arithmetic number, because the mean of its divisors is an integer number (606105060430).

Almost surely, 2^{1212210120859} is an apocalyptic number.

1212210120859 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212210120859 is an equidigital number, since it uses as much as digits as its factorization.

1212210120859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 34.

The spelling of 1212210120859 in words is "one trillion, two hundred twelve billion, two hundred ten million, one hundred twenty thousand, eight hundred fifty-nine".