123456222394 has 4 divisors (see below), whose sum is σ = 185184333594. Its totient is φ = 61728111196.

The previous prime is 123456222367. The next prime is 123456222413. The reversal of 123456222394 is 493222654321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 110897658169 + 12558564225 = 333013^2 + 112065^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 123456222394.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30864055597 + ... + 30864055600.

Almost surely, 2^123456222394 is an apocalyptic number.

123456222394 is a deficient number, since it is larger than the sum of its proper divisors (61728111200).

123456222394 is an equidigital number, since it uses as much as digits as its factorization.

123456222394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61728111199.

The product of its digits is 622080, while the sum is 43.

The spelling of 123456222394 in words is "one hundred twenty-three billion, four hundred fifty-six million, two hundred twenty-two thousand, three hundred ninety-four".