1229952859997 has 2 divisors, whose sum is σ = 1229952859998. Its totient is φ = 1229952859996.

The previous prime is 1229952859987. The next prime is 1229952859999. The reversal of 1229952859997 is 7999582599221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 853145948281 + 376806911716 = 923659^2 + 613846^2 .

It is a cyclic number.

It is not a de Polignac number, because 1229952859997 - 2²⁰ = 1229951811421 is a prime.

Together with 1229952859999, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1229952859999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614976429998 + 614976429999.

It is an arithmetic number, because the mean of its divisors is an integer number (614976429999).

Almost surely, 2^{1229952859997} is an apocalyptic number.

It is an amenable number.

1229952859997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1229952859997 is an equidigital number, since it uses as much as digits as its factorization.

1229952859997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 661348800, while the sum is 77.

The spelling of 1229952859997 in words is "one trillion, two hundred twenty-nine billion, nine hundred fifty-two million, eight hundred fifty-nine thousand, nine hundred ninety-seven".