1221332023113 has 8 divisors (see below), whose sum is σ = 1628530610400. Its totient is φ = 814177392288.

The previous prime is 1221332023103. The next prime is 1221332023117. The reversal of 1221332023113 is 3113202331221.

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

It is not a de Polignac number, because 1221332023113 - 2⁶ = 1221332023049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1221332023117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10924228 + ... + 11035461.

It is an arithmetic number, because the mean of its divisors is an integer number (203566326300).

Almost surely, 2^{1221332023113} is an apocalyptic number.

It is an amenable number.

1221332023113 is a deficient number, since it is larger than the sum of its proper divisors (407198587287).

1221332023113 is a wasteful number, since it uses less digits than its factorization.

1221332023113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21978231.

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

Adding to 1221332023113 its reverse (3113202331221), we get a palindrome (4334534354334).

The spelling of 1221332023113 in words is "one trillion, two hundred twenty-one billion, three hundred thirty-two million, twenty-three thousand, one hundred thirteen".