221320202102 has 16 divisors (see below), whose sum is σ = 333980115840. Its totient is φ = 109995018432.

The previous prime is 221320202099. The next prime is 221320202119. The reversal of 221320202102 is 201202023122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88727 + ... + 671202.

It is an arithmetic number, because the mean of its divisors is an integer number (20873757240).

Almost surely, 2^221320202102 is an apocalyptic number.

221320202102 is a deficient number, since it is larger than the sum of its proper divisors (112659913738).

221320202102 is a wasteful number, since it uses less digits than its factorization.

221320202102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760807.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 221320202102 its reverse (201202023122), we get a palindrome (422522225224).

The spelling of 221320202102 in words is "two hundred twenty-one billion, three hundred twenty million, two hundred two thousand, one hundred two".