221224034131 has 8 divisors (see below), whose sum is σ = 222107948640. Its totient is φ = 220341793728.

The previous prime is 221224034111. The next prime is 221224034137. The reversal of 221224034131 is 131430422122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 221224034131 - 2¹¹ = 221224032083 is a prime.

It is a super-2 number, since 2×221224034131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221224034096 and 221224034105.

It is not an unprimeable number, because it can be changed into a prime (221224034137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153376 + ... + 682621.

It is an arithmetic number, because the mean of its divisors is an integer number (27763493580).

Almost surely, 2^221224034131 is an apocalyptic number.

221224034131 is a deficient number, since it is larger than the sum of its proper divisors (883914509).

221224034131 is an equidigital number, since it uses as much as digits as its factorization.

221224034131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837053.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 221224034131 its reverse (131430422122), we get a palindrome (352654456253).

The spelling of 221224034131 in words is "two hundred twenty-one billion, two hundred twenty-four million, thirty-four thousand, one hundred thirty-one".