221441020233243 has 16 divisors (see below), whose sum is σ = 300902337750816. Its totient is φ = 144804947006720.

The previous prime is 221441020233241. The next prime is 221441020233253. The reversal of 221441020233243 is 342332020144122.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 221441020233243 - 2¹ = 221441020233241 is a prime.

It is a super-2 number, since 2×221441020233243² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (221441020233241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177154938 + ... + 178400543.

It is an arithmetic number, because the mean of its divisors is an integer number (18806396109426).

Almost surely, 2^{221441020233243} is an apocalyptic number.

221441020233243 is a deficient number, since it is larger than the sum of its proper divisors (79461317517573).

221441020233243 is a wasteful number, since it uses less digits than its factorization.

221441020233243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355559454.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 221441020233243 its reverse (342332020144122), we get a palindrome (563773040377365).

The spelling of 221441020233243 in words is "two hundred twenty-one trillion, four hundred forty-one billion, twenty million, two hundred thirty-three thousand, two hundred forty-three".