221132012323 has 4 divisors (see below), whose sum is σ = 223278925168. Its totient is φ = 218985099480.

The previous prime is 221132012317. The next prime is 221132012329. The reversal of 221132012323 is 323210231122.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (221132012317) and next prime (221132012329).

It is a cyclic number.

It is not a de Polignac number, because 221132012323 - 2⁹ = 221132011811 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221132012294 and 221132012303.

It is not an unprimeable number, because it can be changed into a prime (221132012329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1073456268 + ... + 1073456473.

It is an arithmetic number, because the mean of its divisors is an integer number (55819731292).

Almost surely, 2^221132012323 is an apocalyptic number.

221132012323 is a deficient number, since it is larger than the sum of its proper divisors (2146912845).

221132012323 is a wasteful number, since it uses less digits than its factorization.

221132012323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2146912844.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 221132012323 its reverse (323210231122), we get a palindrome (544342243445).

The spelling of 221132012323 in words is "two hundred twenty-one billion, one hundred thirty-two million, twelve thousand, three hundred twenty-three".