221100202220102 has 16 divisors (see below), whose sum is σ = 339505080998400. Its totient is φ = 107956659510600.

The previous prime is 221100202220039. The next prime is 221100202220129. The reversal of 221100202220102 is 201022202001122.

It is a happy number.

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, 6204387902 + ... + 6204423537.

It is an arithmetic number, because the mean of its divisors is an integer number (21219067562400).

Almost surely, 2^{221100202220102} is an apocalyptic number.

221100202220102 is a deficient number, since it is larger than the sum of its proper divisors (118404878778298).

221100202220102 is a wasteful number, since it uses less digits than its factorization.

221100202220102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12408811651.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 221100202220102 its reverse (201022202001122), we get a palindrome (422122404221224).

The spelling of 221100202220102 in words is "two hundred twenty-one trillion, one hundred billion, two hundred two million, two hundred twenty thousand, one hundred two".