1226309329901 has 2 divisors, whose sum is σ = 1226309329902. Its totient is φ = 1226309329900.

The previous prime is 1226309329829. The next prime is 1226309329907. The reversal of 1226309329901 is 1099239036221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1080040562500 + 146268767401 = 1039250^2 + 382451^2 .

It is a cyclic number.

It is not a de Polignac number, because 1226309329901 - 2¹⁸ = 1226309067757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1226309329907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613154664950 + 613154664951.

It is an arithmetic number, because the mean of its divisors is an integer number (613154664951).

Almost surely, 2^{1226309329901} is an apocalyptic number.

It is an amenable number.

1226309329901 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226309329901 is an equidigital number, since it uses as much as digits as its factorization.

1226309329901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 314928, while the sum is 47.

The spelling of 1226309329901 in words is "one trillion, two hundred twenty-six billion, three hundred nine million, three hundred twenty-nine thousand, nine hundred one".