221223130124 has 12 divisors (see below), whose sum is σ = 399628880448. Its totient is φ = 107043450000.

The previous prime is 221223130097. The next prime is 221223130133. The reversal of 221223130124 is 421031322122.

It is a self number, because there is not a number n which added to its sum of digits gives 221223130124.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 892028627 + ... + 892028874.

It is an arithmetic number, because the mean of its divisors is an integer number (33302406704).

Almost surely, 2^221223130124 is an apocalyptic number.

It is an amenable number.

221223130124 is a deficient number, since it is larger than the sum of its proper divisors (178405750324).

221223130124 is a wasteful number, since it uses less digits than its factorization.

221223130124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784057536 (or 1784057534 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 221223130124 its reverse (421031322122), we get a palindrome (642254452246).

The spelling of 221223130124 in words is "two hundred twenty-one billion, two hundred twenty-three million, one hundred thirty thousand, one hundred twenty-four".