221040424341231 has 16 divisors (see below), whose sum is σ = 321513707383680. Its totient is φ = 133963742337120.

The previous prime is 221040424341173. The next prime is 221040424341277. The reversal of 221040424341231 is 132143424040122.

It is not a de Polignac number, because 221040424341231 - 2¹¹ = 221040424339183 is a prime.

It is a super-2 number, since 2×221040424341231² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 221040424341192 and 221040424341201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221040424341131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30555381 + ... + 37090593.

It is an arithmetic number, because the mean of its divisors is an integer number (20094606711480).

Almost surely, 2^{221040424341231} is an apocalyptic number.

221040424341231 is a deficient number, since it is larger than the sum of its proper divisors (100473283042449).

221040424341231 is a wasteful number, since it uses less digits than its factorization.

221040424341231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7560166.

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 221040424341231 its reverse (132143424040122), we get a palindrome (353183848381353).

The spelling of 221040424341231 in words is "two hundred twenty-one trillion, forty billion, four hundred twenty-four million, three hundred forty-one thousand, two hundred thirty-one".