220421223124003 has 4 divisors (see below), whose sum is σ = 240459516135288. Its totient is φ = 200382930112720.

The previous prime is 220421223123929. The next prime is 220421223124007. The reversal of 220421223124003 is 300421322124022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220421223124003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220421223124007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10019146505626 + ... + 10019146505647.

It is an arithmetic number, because the mean of its divisors is an integer number (60114879033822).

Almost surely, 2^{220421223124003} is an apocalyptic number.

220421223124003 is a deficient number, since it is larger than the sum of its proper divisors (20038293011285).

220421223124003 is a wasteful number, since it uses less digits than its factorization.

220421223124003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20038293011284.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 220421223124003 its reverse (300421322124022), we get a palindrome (520842545248025).

The spelling of 220421223124003 in words is "two hundred twenty trillion, four hundred twenty-one billion, two hundred twenty-three million, one hundred twenty-four thousand, three".