1211001223 has 2 divisors, whose sum is σ = 1211001224. Its totient is φ = 1211001222.

The previous prime is 1211001193. The next prime is 1211001299. The reversal of 1211001223 is 3221001121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1211001223 - 2¹³ = 1210993031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211001023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605500611 + 605500612.

It is an arithmetic number, because the mean of its divisors is an integer number (605500612).

Almost surely, 2^1211001223 is an apocalyptic number.

1211001223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211001223 is an equidigital number, since it uses as much as digits as its factorization.

1211001223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1211001223 is about 34799.4428547355. The cubic root of 1211001223 is about 1065.8960690891.

Adding to 1211001223 its reverse (3221001121), we get a palindrome (4432002344).

The spelling of 1211001223 in words is "one billion, two hundred eleven million, one thousand, two hundred twenty-three".