1122312321221 has 24 divisors (see below), whose sum is σ = 1389174456384. Its totient is φ = 887806033920.

The previous prime is 1122312321197. The next prime is 1122312321233. The reversal of 1122312321221 is 1221232132211.

It is a de Polignac number, because none of the positive numbers 2^k-1122312321221 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122312321421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5996741 + ... + 6181061.

It is an arithmetic number, because the mean of its divisors is an integer number (57882269016).

Almost surely, 2^{1122312321221} is an apocalyptic number.

It is an amenable number.

1122312321221 is a deficient number, since it is larger than the sum of its proper divisors (266862135163).

1122312321221 is a wasteful number, since it uses less digits than its factorization.

1122312321221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189501 (or 189488 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

Adding to 1122312321221 its reverse (1221232132211), we get a palindrome (2343544453432).

The spelling of 1122312321221 in words is "one trillion, one hundred twenty-two billion, three hundred twelve million, three hundred twenty-one thousand, two hundred twenty-one".