126211223 has 2 divisors, whose sum is σ = 126211224. Its totient is φ = 126211222.

The previous prime is 126211193. The next prime is 126211229. The reversal of 126211223 is 322112621.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126211223 is a prime.

It is a super-2 number, since 2×126211223² = 31858545622311458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 126211195 and 126211204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126211229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63105611 + 63105612.

It is an arithmetic number, because the mean of its divisors is an integer number (63105612).

Almost surely, 2^126211223 is an apocalyptic number.

126211223 is a deficient number, since it is larger than the sum of its proper divisors (1).

126211223 is an equidigital number, since it uses as much as digits as its factorization.

126211223 is an odious number, because the sum of its binary digits is odd.

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

The square root of 126211223 is about 11234.3768407509. The cubic root of 126211223 is about 501.6097756825.

Adding to 126211223 its reverse (322112621), we get a palindrome (448323844).

The spelling of 126211223 in words is "one hundred twenty-six million, two hundred eleven thousand, two hundred twenty-three".