1122321211021 has 4 divisors (see below), whose sum is σ = 1122372618844. Its totient is φ = 1122269803200.

The previous prime is 1122321211007. The next prime is 1122321211027. The reversal of 1122321211021 is 1201121232211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 451027755396 + 671293455625 = 671586^2 + 819325^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122321211021 - 2²⁹ = 1121784340109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1122321211021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122321211027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25671150 + ... + 25714831.

It is an arithmetic number, because the mean of its divisors is an integer number (280593154711).

Almost surely, 2^{1122321211021} is an apocalyptic number.

It is an amenable number.

1122321211021 is a deficient number, since it is larger than the sum of its proper divisors (51407823).

1122321211021 is an equidigital number, since it uses as much as digits as its factorization.

1122321211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51407822.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 1122321211021 its reverse (1201121232211), we get a palindrome (2323442443232).

The spelling of 1122321211021 in words is "one trillion, one hundred twenty-two billion, three hundred twenty-one million, two hundred eleven thousand, twenty-one".