12221201001331 has 8 divisors (see below), whose sum is σ = 14158416816224. Its totient is φ = 10331817675840.

The previous prime is 12221201001311. The next prime is 12221201001337. The reversal of 12221201001331 is 13310010212221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12221201001331 - 2²⁵ = 12221167446899 is a prime.

It is a super-2 number, since 2×12221201001331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12221201001299 and 12221201001308.

It is not an unprimeable number, because it can be changed into a prime (12221201001337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11958121800 + ... + 11958122821.

It is an arithmetic number, because the mean of its divisors is an integer number (1769802102028).

Almost surely, 2^{12221201001331} is an apocalyptic number.

12221201001331 is a deficient number, since it is larger than the sum of its proper divisors (1937215814893).

12221201001331 is an equidigital number, since it uses as much as digits as its factorization.

12221201001331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23916244701.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 12221201001331 its reverse (13310010212221), we get a palindrome (25531211213552).

The spelling of 12221201001331 in words is "twelve trillion, two hundred twenty-one billion, two hundred one million, one thousand, three hundred thirty-one".