211201223 has 2 divisors, whose sum is σ = 211201224. Its totient is φ = 211201222.

The previous prime is 211201147. The next prime is 211201241. The reversal of 211201223 is 322102112.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211201223 - 2¹² = 211197127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211201198 and 211201207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211251223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105600611 + 105600612.

It is an arithmetic number, because the mean of its divisors is an integer number (105600612).

Almost surely, 2^211201223 is an apocalyptic number.

211201223 is a deficient number, since it is larger than the sum of its proper divisors (1).

211201223 is an equidigital number, since it uses as much as digits as its factorization.

211201223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 211201223 is about 14532.7637770659. The cubic root of 211201223 is about 595.5233706801.

Adding to 211201223 its reverse (322102112), we get a palindrome (533303335).

The spelling of 211201223 in words is "two hundred eleven million, two hundred one thousand, two hundred twenty-three".