21044322344012 has 120 divisors (see below), whose sum is σ = 41879356965600. Its totient is φ = 9246561350400.

The previous prime is 21044322343991. The next prime is 21044322344021.

It is a happy number.

21044322344012 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×21044322344012² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21044322344012.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 261682313 + ... + 261762719.

It is an arithmetic number, because the mean of its divisors is an integer number (348994641380).

Almost surely, 2^{21044322344012} is an apocalyptic number.

21044322344012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21044322344012 is a deficient number, since it is larger than the sum of its proper divisors (20835034621588).

21044322344012 is a wasteful number, since it uses less digits than its factorization.

21044322344012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80605 (or 80570 counting only the distinct ones).

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

It can be divided in two parts, 2104432 and 2344012, that added together give a palindrome (4448444).

The spelling of 21044322344012 in words is "twenty-one trillion, forty-four billion, three hundred twenty-two million, three hundred forty-four thousand, twelve".