22440221143412 has 24 divisors (see below), whose sum is σ = 43388253671616. Its totient is φ = 10100969107328.

The previous prime is 22440221143411. The next prime is 22440221143423. The reversal of 22440221143412 is 21434112204422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22440221143411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7173982178 + ... + 7173985305.

It is an arithmetic number, because the mean of its divisors is an integer number (1807843902984).

Almost surely, 2^{22440221143412} is an apocalyptic number.

It is an amenable number.

22440221143412 is a deficient number, since it is larger than the sum of its proper divisors (20948032528204).

22440221143412 is a wasteful number, since it uses less digits than its factorization.

22440221143412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14347967527 (or 14347967525 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 22440221143412 its reverse (21434112204422), we get a palindrome (43874333347834).

The spelling of 22440221143412 in words is "twenty-two trillion, four hundred forty billion, two hundred twenty-one million, one hundred forty-three thousand, four hundred twelve".