1222412521443 has 16 divisors (see below), whose sum is σ = 1631445474336. Its totient is φ = 814160793600.

The previous prime is 1222412521417. The next prime is 1222412521481. The reversal of 1222412521443 is 3441252142221.

It is a de Polignac number, because none of the positive numbers 2^k-1222412521443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1222412521543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41562543 + ... + 41591943.

It is an arithmetic number, because the mean of its divisors is an integer number (101965342146).

Almost surely, 2^{1222412521443} is an apocalyptic number.

1222412521443 is a deficient number, since it is larger than the sum of its proper divisors (409032952893).

1222412521443 is a wasteful number, since it uses less digits than its factorization.

1222412521443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42214.

The product of its digits is 30720, while the sum is 33.

Adding to 1222412521443 its reverse (3441252142221), we get a palindrome (4663664663664).

The spelling of 1222412521443 in words is "one trillion, two hundred twenty-two billion, four hundred twelve million, five hundred twenty-one thousand, four hundred forty-three".