1222013231444 has 24 divisors (see below), whose sum is σ = 2169202795200. Its totient is φ = 602245445760.

The previous prime is 1222013231441. The next prime is 1222013231489. The reversal of 1222013231444 is 4441323102221.

It is a super-2 number, since 2×1222013231444² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222013231441) 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, 551267 + ... + 1657685.

It is an arithmetic number, because the mean of its divisors is an integer number (90383449800).

Almost surely, 2^{1222013231444} is an apocalyptic number.

It is an amenable number.

1222013231444 is a deficient number, since it is larger than the sum of its proper divisors (947189563756).

1222013231444 is a wasteful number, since it uses less digits than its factorization.

1222013231444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110383 (or 1110381 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 1222013231444 its reverse (4441323102221), we get a palindrome (5663336333665).

The spelling of 1222013231444 in words is "one trillion, two hundred twenty-two billion, thirteen million, two hundred thirty-one thousand, four hundred forty-four".