221102221202100 has 108 divisors (see below), whose sum is σ = 792037290195424. Its totient is φ = 50537650559040.

The previous prime is 221102221202099. The next prime is 221102221202189. The reversal of 221102221202100 is 1202122201122.

It is a happy number.

221102221202100 is a `hidden beast` number, since 2 + 2 + 110 + 222 + 120 + 210 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 17547789034 + ... + 17547801633.

Almost surely, 2^{221102221202100} is an apocalyptic number.

221102221202100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221102221202100 is an abundant number, since it is smaller than the sum of its proper divisors (570935068993324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221102221202100 is a wasteful number, since it uses less digits than its factorization.

221102221202100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35095590694 (or 35095590684 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 221102221202100 its reverse (1202122201122), we get a palindrome (222304343403222).

The spelling of 221102221202100 in words is "two hundred twenty-one trillion, one hundred two billion, two hundred twenty-one million, two hundred two thousand, one hundred".