13212010331121 has 16 divisors (see below), whose sum is σ = 20416144739328. Its totient is φ = 7443386101200.

The previous prime is 13212010331033. The next prime is 13212010331131. The reversal of 13212010331121 is 12113301021231.

It is not a de Polignac number, because 13212010331121 - 2⁷ = 13212010330993 is a prime.

It is a super-2 number, since 2×13212010331121² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13212010331131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4430585475 + ... + 4430588456.

It is an arithmetic number, because the mean of its divisors is an integer number (1276009046208).

Almost surely, 2^{13212010331121} is an apocalyptic number.

It is an amenable number.

13212010331121 is a deficient number, since it is larger than the sum of its proper divisors (7204134408207).

13212010331121 is an equidigital number, since it uses as much as digits as its factorization.

13212010331121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8861174012.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 13212010331121 its reverse (12113301021231), we get a palindrome (25325311352352).

The spelling of 13212010331121 in words is "thirteen trillion, two hundred twelve billion, ten million, three hundred thirty-one thousand, one hundred twenty-one".