12220444124 has 24 divisors (see below), whose sum is σ = 24449200608. Its totient is φ = 5235552000.

The previous prime is 12220444091. The next prime is 12220444141. The reversal of 12220444124 is 42144402221.

It is a happy number.

It is a super-2 number, since 2×12220444124² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12220444093 and 12220444102.

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, 11312 + ... + 156744.

It is an arithmetic number, because the mean of its divisors is an integer number (1018716692).

Almost surely, 2^12220444124 is an apocalyptic number.

12220444124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12220444124 is an abundant number, since it is smaller than the sum of its proper divisors (12228756484).

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

12220444124 is a wasteful number, since it uses less digits than its factorization.

12220444124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148445 (or 148443 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 12220444124 its reverse (42144402221), we get a palindrome (54364846345).

The spelling of 12220444124 in words is "twelve billion, two hundred twenty million, four hundred forty-four thousand, one hundred twenty-four".