1222423534 has 4 divisors (see below), whose sum is σ = 1833635304. Its totient is φ = 611211766.

The previous prime is 1222423529. The next prime is 1222423541. The reversal of 1222423534 is 4353242221.

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

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, 305605882 + ... + 305605885.

It is an arithmetic number, because the mean of its divisors is an integer number (458408826).

Almost surely, 2^1222423534 is an apocalyptic number.

1222423534 is a deficient number, since it is larger than the sum of its proper divisors (611211770).

1222423534 is an equidigital number, since it uses as much as digits as its factorization.

1222423534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611211769.

The product of its digits is 11520, while the sum is 28.

The square root of 1222423534 is about 34963.1739691922. The cubic root of 1222423534 is about 1069.2368080886.

Adding to 1222423534 its reverse (4353242221), we get a palindrome (5575665755).

The spelling of 1222423534 in words is "one billion, two hundred twenty-two million, four hundred twenty-three thousand, five hundred thirty-four".