22323213312121 has 4 divisors (see below), whose sum is σ = 22328588518132. Its totient is φ = 22317838106112.

The previous prime is 22323213312077. The next prime is 22323213312163. The reversal of 22323213312121 is 12121331232322.

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 10185033960000 + 12138179352121 = 3191400^2 + 3483989^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22323213312121 is a prime.

It is a super-3 number, since 3×22323213312121³ (a number of 41 digits) contains 333 as substring.

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 22323213312121.

It is not an unprimeable number, because it can be changed into a prime (22323213318121) 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, 2687596776 + ... + 2687605081.

It is an arithmetic number, because the mean of its divisors is an integer number (5582147129533).

Almost surely, 2^{22323213312121} is an apocalyptic number.

It is an amenable number.

22323213312121 is a deficient number, since it is larger than the sum of its proper divisors (5375206011).

22323213312121 is an equidigital number, since it uses as much as digits as its factorization.

22323213312121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5375206010.

The product of its digits is 5184, while the sum is 28.

Adding to 22323213312121 its reverse (12121331232322), we get a palindrome (34444544544443).

The spelling of 22323213312121 in words is "twenty-two trillion, three hundred twenty-three billion, two hundred thirteen million, three hundred twelve thousand, one hundred twenty-one".