221233012024 has 16 divisors (see below), whose sum is σ = 424458686520. Its totient is φ = 108044028960.

The previous prime is 221233011991. The next prime is 221233012051. The reversal of 221233012024 is 420210332122.

It is a super-2 number, since 2×221233012024² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221233011986 and 221233012004.

It is a congruent number.

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, 321559267 + ... + 321559954.

Almost surely, 2^221233012024 is an apocalyptic number.

It is an amenable number.

221233012024 is a deficient number, since it is larger than the sum of its proper divisors (203225674496).

221233012024 is a wasteful number, since it uses less digits than its factorization.

221233012024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643119270 (or 643119266 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 221233012024 its reverse (420210332122), we get a palindrome (641443344146).

The spelling of 221233012024 in words is "two hundred twenty-one billion, two hundred thirty-three million, twelve thousand, twenty-four".