13223021231121 has 32 divisors (see below), whose sum is σ = 19641992952960. Its totient is φ = 7856501259264.

The previous prime is 13223021231111. The next prime is 13223021231153. The reversal of 13223021231121 is 12113212032231.

13223021231121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13223021231121 - 2¹⁴ = 13223021214737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13223021231091 and 13223021231100.

It is not an unprimeable number, because it can be changed into a prime (13223021231111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101038090 + ... + 101168876.

It is an arithmetic number, because the mean of its divisors is an integer number (613812279780).

Almost surely, 2^{13223021231121} is an apocalyptic number.

It is an amenable number.

13223021231121 is a deficient number, since it is larger than the sum of its proper divisors (6418971721839).

13223021231121 is a wasteful number, since it uses less digits than its factorization.

13223021231121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220225.

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

Adding to 13223021231121 its reverse (12113212032231), we get a palindrome (25336233263352).

The spelling of 13223021231121 in words is "thirteen trillion, two hundred twenty-three billion, twenty-one million, two hundred thirty-one thousand, one hundred twenty-one".