12218272734 has 16 divisors (see below), whose sum is σ = 25722679680. Its totient is φ = 3858401880.

The previous prime is 12218272723. The next prime is 12218272739. The reversal of 12218272734 is 43727281221.

It is a junction number, because it is equal to n+sod(n) for n = 12218272692 and 12218272701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12218272739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53588802 + ... + 53589029.

It is an arithmetic number, because the mean of its divisors is an integer number (1607667480).

Almost surely, 2^12218272734 is an apocalyptic number.

12218272734 is an abundant number, since it is smaller than the sum of its proper divisors (13504406946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12218272734 is a wasteful number, since it uses less digits than its factorization.

12218272734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107177855.

The product of its digits is 75264, while the sum is 39.

The spelling of 12218272734 in words is "twelve billion, two hundred eighteen million, two hundred seventy-two thousand, seven hundred thirty-four".