221231223130124 has 48 divisors (see below), whose sum is σ = 421734524248800. Its totient is φ = 101144034432000.

The previous prime is 221231223130121. The next prime is 221231223130133. The reversal of 221231223130124 is 421031322132122.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (221231223130121) 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, 11744687 + ... + 24091494.

It is an arithmetic number, because the mean of its divisors is an integer number (8786135921850).

Almost surely, 2^{221231223130124} is an apocalyptic number.

It is an amenable number.

221231223130124 is a deficient number, since it is larger than the sum of its proper divisors (200503301118676).

221231223130124 is a wasteful number, since it uses less digits than its factorization.

221231223130124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35839034 (or 35839032 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 221231223130124 its reverse (421031322132122), we get a palindrome (642262545262246).

The spelling of 221231223130124 in words is "two hundred twenty-one trillion, two hundred thirty-one billion, two hundred twenty-three million, one hundred thirty thousand, one hundred twenty-four".