12217209234 has 16 divisors (see below), whose sum is σ = 24954300288. Its totient is φ = 3985756112.

The previous prime is 12217209229. The next prime is 12217209283. The reversal of 12217209234 is 43290271221.

It is a junction number, because it is equal to n+sod(n) for n = 12217209195 and 12217209204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21661437 + ... + 21662000.

It is an arithmetic number, because the mean of its divisors is an integer number (1559643768).

Almost surely, 2^12217209234 is an apocalyptic number.

12217209234 is an abundant number, since it is smaller than the sum of its proper divisors (12737091054).

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

12217209234 is a wasteful number, since it uses less digits than its factorization.

12217209234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43323489.

The product of its (nonzero) digits is 12096, while the sum is 33.

The spelling of 12217209234 in words is "twelve billion, two hundred seventeen million, two hundred nine thousand, two hundred thirty-four".