221330230110311 has 96 divisors (see below), whose sum is σ = 275642962882560. Its totient is φ = 176819113126656.

The previous prime is 221330230110307. The next prime is 221330230110337. The reversal of 221330230110311 is 113011032033122.

It is not a de Polignac number, because 221330230110311 - 2² = 221330230110307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221330230110911) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2686885721 + ... + 2686968093.

It is an arithmetic number, because the mean of its divisors is an integer number (2871280863360).

Almost surely, 2^{221330230110311} is an apocalyptic number.

221330230110311 is a deficient number, since it is larger than the sum of its proper divisors (54312732772249).

221330230110311 is a wasteful number, since it uses less digits than its factorization.

221330230110311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82885 (or 82878 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 221330230110311 its reverse (113011032033122), we get a palindrome (334341262143433).

The spelling of 221330230110311 in words is "two hundred twenty-one trillion, three hundred thirty billion, two hundred thirty million, one hundred ten thousand, three hundred eleven".