1222023434 has 4 divisors (see below), whose sum is σ = 1833035154. Its totient is φ = 611011716.

The previous prime is 1222023421. The next prime is 1222023443. The reversal of 1222023434 is 4343202221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4343202221 = 1663 ⋅2611667.

It can be written as a sum of positive squares in only one way, i.e., 1046328409 + 175695025 = 32347^2 + 13255^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305505857 + ... + 305505860.

Almost surely, 2^1222023434 is an apocalyptic number.

1222023434 is a deficient number, since it is larger than the sum of its proper divisors (611011720).

1222023434 is an equidigital number, since it uses as much as digits as its factorization.

1222023434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611011719.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 1222023434 is about 34957.4517663974. The cubic root of 1222023434 is about 1069.1201413969.

Adding to 1222023434 its reverse (4343202221), we get a palindrome (5565225655).

The spelling of 1222023434 in words is "one billion, two hundred twenty-two million, twenty-three thousand, four hundred thirty-four".