11323011223221 has 4 divisors (see below), whose sum is σ = 15097348297632. Its totient is φ = 7548674148812.

The previous prime is 11323011223133. The next prime is 11323011223273. The reversal of 11323011223221 is 12232211032311.

11323011223221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11323011223221 - 2²⁷ = 11322877005493 is a prime.

It is a super-2 number, since 2×11323011223221² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11323011223191 and 11323011223200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11323011223021) 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, 1887168537201 + ... + 1887168537206.

It is an arithmetic number, because the mean of its divisors is an integer number (3774337074408).

Almost surely, 2^{11323011223221} is an apocalyptic number.

It is an amenable number.

11323011223221 is a deficient number, since it is larger than the sum of its proper divisors (3774337074411).

11323011223221 is an equidigital number, since it uses as much as digits as its factorization.

11323011223221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3774337074410.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 11323011223221 its reverse (12232211032311), we get a palindrome (23555222255532).

The spelling of 11323011223221 in words is "eleven trillion, three hundred twenty-three billion, eleven million, two hundred twenty-three thousand, two hundred twenty-one".