12220031000028 has 192 divisors, whose sum is σ = 30043259043840. Its totient is φ = 3860771577600.

The previous prime is 12220031000017. The next prime is 12220031000029. The reversal of 12220031000028 is 82000013002221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12220030999968 and 12220031000013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220031000029) 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, 11852599873 + ... + 11852600903.

It is an arithmetic number, because the mean of its divisors is an integer number (156475307520).

Almost surely, 2^{12220031000028} is an apocalyptic number.

It is an amenable number.

12220031000028 is an abundant number, since it is smaller than the sum of its proper divisors (17823228043812).

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

12220031000028 is a wasteful number, since it uses less digits than its factorization.

12220031000028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2608 (or 2606 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 12220031000028 its reverse (82000013002221), we get a palindrome (94220044002249).

The spelling of 12220031000028 in words is "twelve trillion, two hundred twenty billion, thirty-one million, twenty-eight", and thus it is an aban number.