221303023331011 has 4 divisors (see below), whose sum is σ = 221321448372024. Its totient is φ = 221284598290000.

The previous prime is 221303023330999. The next prime is 221303023331021. The reversal of 221303023331011 is 110133320303122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221303023331011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221303023331021) 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, 9212502490 + ... + 9212526511.

It is an arithmetic number, because the mean of its divisors is an integer number (55330362093006).

Almost surely, 2^{221303023331011} is an apocalyptic number.

221303023331011 is a deficient number, since it is larger than the sum of its proper divisors (18425041013).

221303023331011 is a wasteful number, since it uses less digits than its factorization.

221303023331011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18425041012.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 221303023331011 its reverse (110133320303122), we get a palindrome (331436343634133).

The spelling of 221303023331011 in words is "two hundred twenty-one trillion, three hundred three billion, twenty-three million, three hundred thirty-one thousand, eleven".