1212201120929 has 2 divisors, whose sum is σ = 1212201120930. Its totient is φ = 1212201120928.

The previous prime is 1212201120883. The next prime is 1212201120967. The reversal of 1212201120929 is 9290211022121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1145028403600 + 67172717329 = 1070060^2 + 259177^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212201120929 - 2⁴⁰ = 112689493153 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1212201120895 and 1212201120904.

It is not a weakly prime, because it can be changed into another prime (1212201120629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606100560464 + 606100560465.

It is an arithmetic number, because the mean of its divisors is an integer number (606100560465).

Almost surely, 2^{1212201120929} is an apocalyptic number.

It is an amenable number.

1212201120929 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212201120929 is an equidigital number, since it uses as much as digits as its factorization.

1212201120929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 32.

The spelling of 1212201120929 in words is "one trillion, two hundred twelve billion, two hundred one million, one hundred twenty thousand, nine hundred twenty-nine".