221232223012124 has 24 divisors (see below), whose sum is σ = 389492737817568. Its totient is φ = 109948645016640.

The previous prime is 221232223012093. The next prime is 221232223012153. The reversal of 221232223012124 is 421210322232122.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6775754 + ... + 22099214.

It is an arithmetic number, because the mean of its divisors is an integer number (16228864075732).

Almost surely, 2^{221232223012124} is an apocalyptic number.

It is an amenable number.

221232223012124 is a deficient number, since it is larger than the sum of its proper divisors (168260514805444).

221232223012124 is a wasteful number, since it uses less digits than its factorization.

221232223012124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15345245 (or 15345243 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 221232223012124 its reverse (421210322232122), we get a palindrome (642442545244246).

The spelling of 221232223012124 in words is "two hundred twenty-one trillion, two hundred thirty-two billion, two hundred twenty-three million, twelve thousand, one hundred twenty-four".