221131334102 has 16 divisors (see below), whose sum is σ = 391310748672. Its totient is φ = 91713456360.

The previous prime is 221131334077. The next prime is 221131334117. The reversal of 221131334102 is 201433131122.

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, 254759168 + ... + 254760035.

It is an arithmetic number, because the mean of its divisors is an integer number (24456921792).

Almost surely, 2^221131334102 is an apocalyptic number.

221131334102 is a deficient number, since it is larger than the sum of its proper divisors (170179414570).

221131334102 is a wasteful number, since it uses less digits than its factorization.

221131334102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509519243.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 221131334102 its reverse (201433131122), we get a palindrome (422564465224).

The spelling of 221131334102 in words is "two hundred twenty-one billion, one hundred thirty-one million, three hundred thirty-four thousand, one hundred two".