2221211231444 has 12 divisors (see below), whose sum is σ = 3887708748000. Its totient is φ = 1110437303448.

The previous prime is 2221211231419. The next prime is 2221211231467. The reversal of 2221211231444 is 4441321121222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42048374 + ... + 42101165.

It is an arithmetic number, because the mean of its divisors is an integer number (323975729000).

Almost surely, 2^{2221211231444} is an apocalyptic number.

It is an amenable number.

2221211231444 is a deficient number, since it is larger than the sum of its proper divisors (1666497516556).

2221211231444 is a wasteful number, since it uses less digits than its factorization.

2221211231444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84156142 (or 84156140 counting only the distinct ones).

The product of its digits is 6144, while the sum is 29.

Adding to 2221211231444 its reverse (4441321121222), we get a palindrome (6662532352666).

The spelling of 2221211231444 in words is "two trillion, two hundred twenty-one billion, two hundred eleven million, two hundred thirty-one thousand, four hundred forty-four".