221231003101 has 8 divisors (see below), whose sum is σ = 228375267584. Its totient is φ = 214087224960.

The previous prime is 221231003087. The next prime is 221231003113. The reversal of 221231003101 is 101300132122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221231003101 - 2⁷ = 221231002973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221231703101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 954061 + ... + 1163053.

It is an arithmetic number, because the mean of its divisors is an integer number (28546908448).

Almost surely, 2^221231003101 is an apocalyptic number.

It is an amenable number.

221231003101 is a deficient number, since it is larger than the sum of its proper divisors (7144264483).

221231003101 is a wasteful number, since it uses less digits than its factorization.

221231003101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243171.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 221231003101 its reverse (101300132122), we get a palindrome (322531135223).

The spelling of 221231003101 in words is "two hundred twenty-one billion, two hundred thirty-one million, three thousand, one hundred one".