12213220124 has 24 divisors (see below), whose sum is σ = 24454990560. Its totient is φ = 5228119296.

The previous prime is 12213220111. The next prime is 12213220141. The reversal of 12213220124 is 42102231221.

It is a junction number, because it is equal to n+sod(n) for n = 12213220096 and 12213220105.

It is a congruent number.

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, 230489 + ... + 278480.

It is an arithmetic number, because the mean of its divisors is an integer number (1018957940).

Almost surely, 2^12213220124 is an apocalyptic number.

12213220124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12213220124 is an abundant number, since it is smaller than the sum of its proper divisors (12241770436).

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

12213220124 is a wasteful number, since it uses less digits than its factorization.

12213220124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509837 (or 509835 counting only the distinct ones).

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

Adding to 12213220124 its reverse (42102231221), we get a palindrome (54315451345).

The spelling of 12213220124 in words is "twelve billion, two hundred thirteen million, two hundred twenty thousand, one hundred twenty-four".