1223208601 has 4 divisors (see below), whose sum is σ = 1226047104. Its totient is φ = 1220370100.

The previous prime is 1223208593. The next prime is 1223208607. The reversal of 1223208601 is 1068023221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1068023221 = 307 ⋅3478903.

It is a cyclic number.

It is not a de Polignac number, because 1223208601 - 2³ = 1223208593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223208607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1418605 + ... + 1419466.

It is an arithmetic number, because the mean of its divisors is an integer number (306511776).

Almost surely, 2^1223208601 is an apocalyptic number.

It is an amenable number.

1223208601 is a deficient number, since it is larger than the sum of its proper divisors (2838503).

1223208601 is an equidigital number, since it uses as much as digits as its factorization.

1223208601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2838502.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 1223208601 is about 34974.3992228601. The cubic root of 1223208601 is about 1069.4656548223.

The spelling of 1223208601 in words is "one billion, two hundred twenty-three million, two hundred eight thousand, six hundred one".