12221164346 has 8 divisors (see below), whose sum is σ = 18605354880. Its totient is φ = 6019379388.

The previous prime is 12221164309. The next prime is 12221164429. The reversal of 12221164346 is 64346112221.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45601226 + ... + 45601493.

It is an arithmetic number, because the mean of its divisors is an integer number (2325669360).

Almost surely, 2^12221164346 is an apocalyptic number.

12221164346 is a deficient number, since it is larger than the sum of its proper divisors (6384190534).

12221164346 is an equidigital number, since it uses as much as digits as its factorization.

12221164346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91202788.

The product of its digits is 13824, while the sum is 32.

Adding to 12221164346 its reverse (64346112221), we get a palindrome (76567276567).

The spelling of 12221164346 in words is "twelve billion, two hundred twenty-one million, one hundred sixty-four thousand, three hundred forty-six".