1223201023211 has 2 divisors, whose sum is σ = 1223201023212. Its totient is φ = 1223201023210.

The previous prime is 1223201023193. The next prime is 1223201023223. The reversal of 1223201023211 is 1123201023221.

It is a strong prime.

It is an emirp because it is prime and its reverse (1123201023221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1223201023211 - 2¹⁰ = 1223201022187 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1223201023411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611600511605 + 611600511606.

It is an arithmetic number, because the mean of its divisors is an integer number (611600511606).

Almost surely, 2^{1223201023211} is an apocalyptic number.

1223201023211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223201023211 is an equidigital number, since it uses as much as digits as its factorization.

1223201023211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1223201023211 its reverse (1123201023221), we get a palindrome (2346402046432).

It can be divided in two parts, 12232010 and 23211, that added together give a palindrome (12255221).

The spelling of 1223201023211 in words is "one trillion, two hundred twenty-three billion, two hundred one million, twenty-three thousand, two hundred eleven".