123221246 has 4 divisors (see below), whose sum is σ = 184831872. Its totient is φ = 61610622.

The previous prime is 123221221. The next prime is 123221291. The reversal of 123221246 is 642122321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 642122321 = 29 ⋅22142149.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30805310 + ... + 30805313.

It is an arithmetic number, because the mean of its divisors is an integer number (46207968).

Almost surely, 2^123221246 is an apocalyptic number.

123221246 is a deficient number, since it is larger than the sum of its proper divisors (61610626).

123221246 is an equidigital number, since it uses as much as digits as its factorization.

123221246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61610625.

The product of its digits is 1152, while the sum is 23.

The square root of 123221246 is about 11100.5065650177. The cubic root of 123221246 is about 497.6169885563.

Adding to 123221246 its reverse (642122321), we get a palindrome (765343567).

The spelling of 123221246 in words is "one hundred twenty-three million, two hundred twenty-one thousand, two hundred forty-six".