221100021202 has 8 divisors (see below), whose sum is σ = 331812691200. Its totient is φ = 110495790804.

The previous prime is 221100021187. The next prime is 221100021253. The reversal of 221100021202 is 202120001122.

It is a happy number.

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

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, 27104802 + ... + 27112957.

It is an arithmetic number, because the mean of its divisors is an integer number (41476586400).

Almost surely, 2^221100021202 is an apocalyptic number.

221100021202 is a deficient number, since it is larger than the sum of its proper divisors (110712669998).

221100021202 is a wasteful number, since it uses less digits than its factorization.

221100021202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54219800.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 221100021202 its reverse (202120001122), we get a palindrome (423220022324).

The spelling of 221100021202 in words is "two hundred twenty-one billion, one hundred million, twenty-one thousand, two hundred two".