1213222005326 has 16 divisors (see below), whose sum is σ = 1915907485200. Its totient is φ = 574595970048.

The previous prime is 1213222005283. The next prime is 1213222005341. The reversal of 1213222005326 is 6235002223121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2196905 + ... + 2693108.

It is an arithmetic number, because the mean of its divisors is an integer number (119744217825).

Almost surely, 2^{1213222005326} is an apocalyptic number.

1213222005326 is a deficient number, since it is larger than the sum of its proper divisors (702685479874).

1213222005326 is a wasteful number, since it uses less digits than its factorization.

1213222005326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4896563.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 1213222005326 its reverse (6235002223121), we get a palindrome (7448224228447).

The spelling of 1213222005326 in words is "one trillion, two hundred thirteen billion, two hundred twenty-two million, five thousand, three hundred twenty-six".