1223204023201 has 2 divisors, whose sum is σ = 1223204023202. Its totient is φ = 1223204023200.

The previous prime is 1223204023189. The next prime is 1223204023211. The reversal of 1223204023201 is 1023204023221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1215054267025 + 8149756176 = 1102295^2 + 90276^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223204023201 - 2⁵ = 1223204023169 is a prime.

It is a super-2 number, since 2×1223204023201² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1223204023211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611602011600 + 611602011601.

It is an arithmetic number, because the mean of its divisors is an integer number (611602011601).

Almost surely, 2^{1223204023201} is an apocalyptic number.

It is an amenable number.

1223204023201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223204023201 is an equidigital number, since it uses as much as digits as its factorization.

1223204023201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 1223204023201 its reverse (1023204023221), we get a palindrome (2246408046422).

The spelling of 1223204023201 in words is "one trillion, two hundred twenty-three billion, two hundred four million, twenty-three thousand, two hundred one".