1221232030297 has 2 divisors, whose sum is σ = 1221232030298. Its totient is φ = 1221232030296.

The previous prime is 1221232030273. The next prime is 1221232030303. The reversal of 1221232030297 is 7920302321221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1220717829321 + 514200976 = 1104861^2 + 22676^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1221232030297 is a prime.

It is not a weakly prime, because it can be changed into another prime (1221232030397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610616015148 + 610616015149.

It is an arithmetic number, because the mean of its divisors is an integer number (610616015149).

Almost surely, 2^{1221232030297} is an apocalyptic number.

It is an amenable number.

1221232030297 is a deficient number, since it is larger than the sum of its proper divisors (1).

1221232030297 is an equidigital number, since it uses as much as digits as its factorization.

1221232030297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The spelling of 1221232030297 in words is "one trillion, two hundred twenty-one billion, two hundred thirty-two million, thirty thousand, two hundred ninety-seven".