12220215430 has 8 divisors (see below), whose sum is σ = 21996387792. Its totient is φ = 4888086168.

The previous prime is 12220215317. The next prime is 12220215493. The reversal of 12220215430 is 3451202221.

It is a happy number.

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

It is a super-2 number, since 2×12220215430² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 611010762 + ... + 611010781.

It is an arithmetic number, because the mean of its divisors is an integer number (2749548474).

Almost surely, 2^12220215430 is an apocalyptic number.

12220215430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12220215430 is a deficient number, since it is larger than the sum of its proper divisors (9776172362).

12220215430 is a wasteful number, since it uses less digits than its factorization.

12220215430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222021550.

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 12220215430 its reverse (3451202221), we get a palindrome (15671417651).

The spelling of 12220215430 in words is "twelve billion, two hundred twenty million, two hundred fifteen thousand, four hundred thirty".