12220334440412 has 24 divisors (see below), whose sum is σ = 24441442456704. Its totient is φ = 5237120422512.

The previous prime is 12220334440403. The next prime is 12220334440427. The reversal of 12220334440412 is 21404443302221.

It is a happy number.

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, 6004418 + ... + 7777769.

It is an arithmetic number, because the mean of its divisors is an integer number (1018393435696).

Almost surely, 2^{12220334440412} is an apocalyptic number.

It is an amenable number.

12220334440412 is an abundant number, since it is smaller than the sum of its proper divisors (12221108016292).

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

12220334440412 is a wasteful number, since it uses less digits than its factorization.

12220334440412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13813865 (or 13813863 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 12220334440412 its reverse (21404443302221), we get a palindrome (33624777742633).

The spelling of 12220334440412 in words is "twelve trillion, two hundred twenty billion, three hundred thirty-four million, four hundred forty thousand, four hundred twelve".