1223310133221 has 24 divisors (see below), whose sum is σ = 1841295355872. Its totient is φ = 721362232800.

The previous prime is 1223310133193. The next prime is 1223310133237.

1223310133221 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1223310133221 - 2¹⁷ = 1223310002149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1223310133191 and 1223310133200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223310131221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45527115 + ... + 45553976.

It is an arithmetic number, because the mean of its divisors is an integer number (76720639828).

Almost surely, 2^{1223310133221} is an apocalyptic number.

1223310133221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1223310133221 is a deficient number, since it is larger than the sum of its proper divisors (617985222651).

1223310133221 is a wasteful number, since it uses less digits than its factorization.

1223310133221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91081153 (or 91081142 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

It can be divided in two parts, 1223310 and 133221, that added together give a palindrome (1356531).

The spelling of 1223310133221 in words is "one trillion, two hundred twenty-three billion, three hundred ten million, one hundred thirty-three thousand, two hundred twenty-one".