1223250444029 has 2 divisors, whose sum is σ = 1223250444030. Its totient is φ = 1223250444028.

The previous prime is 1223250443993. The next prime is 1223250444043. The reversal of 1223250444029 is 9204440523221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 889164132025 + 334086312004 = 942955^2 + 578002^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1223250444029 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1223250443983 and 1223250444001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223250444089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611625222014 + 611625222015.

It is an arithmetic number, because the mean of its divisors is an integer number (611625222015).

Almost surely, 2^{1223250444029} is an apocalyptic number.

It is an amenable number.

1223250444029 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223250444029 is an equidigital number, since it uses as much as digits as its factorization.

1223250444029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 138240, while the sum is 38.

The spelling of 1223250444029 in words is "one trillion, two hundred twenty-three billion, two hundred fifty million, four hundred forty-four thousand, twenty-nine".