1222724734 has 48 divisors (see below), whose sum is σ = 2371512816. Its totient is φ = 467376000.

The previous prime is 1222724707. The next prime is 1222724747. The reversal of 1222724734 is 4374272221.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1222724734.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46434 + ... + 67834.

It is an arithmetic number, because the mean of its divisors is an integer number (49406517).

Almost surely, 2^1222724734 is an apocalyptic number.

1222724734 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1222724734 is a deficient number, since it is larger than the sum of its proper divisors (1148788082).

1222724734 is a wasteful number, since it uses less digits than its factorization.

1222724734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21481 (or 21474 counting only the distinct ones).

The product of its digits is 37632, while the sum is 34.

The square root of 1222724734 is about 34967.4810931528. The cubic root of 1222724734 is about 1069.3246193559.

Adding to 1222724734 its reverse (4374272221), we get a palindrome (5596996955).

The spelling of 1222724734 in words is "one billion, two hundred twenty-two million, seven hundred twenty-four thousand, seven hundred thirty-four".