221323220102 has 8 divisors (see below), whose sum is σ = 332598482112. Its totient is φ = 110457059400.

The previous prime is 221323220059. The next prime is 221323220147. The reversal of 221323220102 is 201022323122.

It is a happy number.

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

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, 102273974 + ... + 102276137.

It is an arithmetic number, because the mean of its divisors is an integer number (41574810264).

Almost surely, 2^221323220102 is an apocalyptic number.

221323220102 is a deficient number, since it is larger than the sum of its proper divisors (111275262010).

221323220102 is a wasteful number, since it uses less digits than its factorization.

221323220102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204550654.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 221323220102 its reverse (201022323122), we get a palindrome (422345543224).

The spelling of 221323220102 in words is "two hundred twenty-one billion, three hundred twenty-three million, two hundred twenty thousand, one hundred two".