12210421223 has 64 divisors (see below), whose sum is σ = 16666460160. Its totient is φ = 8638358400.

The previous prime is 12210421199. The next prime is 12210421277. The reversal of 12210421223 is 32212401221.

It is not a de Polignac number, because 12210421223 - 2⁸ = 12210420967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12210421195 and 12210421204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210421123) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17670308 + ... + 17670998.

It is an arithmetic number, because the mean of its divisors is an integer number (260413440).

Almost surely, 2^12210421223 is an apocalyptic number.

12210421223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12210421223 is a deficient number, since it is larger than the sum of its proper divisors (4456038937).

12210421223 is a wasteful number, since it uses less digits than its factorization.

12210421223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12210421223 its reverse (32212401221), we get a palindrome (44422822444).

The spelling of 12210421223 in words is "twelve billion, two hundred ten million, four hundred twenty-one thousand, two hundred twenty-three".