1222123534 has 8 divisors (see below), whose sum is σ = 1834117560. Its totient is φ = 610751016.

The previous prime is 1222123501. The next prime is 1222123537. The reversal of 1222123534 is 4353212221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1222123499 and 1222123508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222123537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150429 + ... + 158344.

It is an arithmetic number, because the mean of its divisors is an integer number (229264695).

Almost surely, 2^1222123534 is an apocalyptic number.

1222123534 is a deficient number, since it is larger than the sum of its proper divisors (611994026).

1222123534 is a wasteful number, since it uses less digits than its factorization.

1222123534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310754.

The product of its digits is 2880, while the sum is 25.

The square root of 1222123534 is about 34958.8834775941. The cubic root of 1222123534 is about 1069.1493323276.

Adding to 1222123534 its reverse (4353212221), we get a palindrome (5575335755).

The spelling of 1222123534 in words is "one billion, two hundred twenty-two million, one hundred twenty-three thousand, five hundred thirty-four".