1226309329829 has 2 divisors, whose sum is σ = 1226309329830. Its totient is φ = 1226309329828.

The previous prime is 1226309329823. The next prime is 1226309329901. The reversal of 1226309329829 is 9289239036221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 850139320900 + 376170008929 = 922030^2 + 613327^2 .

It is a cyclic number.

It is not a de Polignac number, because 1226309329829 - 2⁴ = 1226309329813 is a prime.

It is a super-2 number, since 2×1226309329829² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1226309329823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613154664914 + 613154664915.

It is an arithmetic number, because the mean of its divisors is an integer number (613154664915).

Almost surely, 2^{1226309329829} is an apocalyptic number.

It is an amenable number.

1226309329829 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226309329829 is an equidigital number, since it uses as much as digits as its factorization.

1226309329829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5038848, while the sum is 56.

The spelling of 1226309329829 in words is "one trillion, two hundred twenty-six billion, three hundred nine million, three hundred twenty-nine thousand, eight hundred twenty-nine".