221021122222202 has 8 divisors (see below), whose sum is σ = 331627253157300. Its totient is φ = 110478704503104.

The previous prime is 221021122222183. The next prime is 221021122222211. The reversal of 221021122222202 is 202222221120122.

221021122222202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 151568083067401 + 69453039154801 = 12311299^2 + 8333849^2 .

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, 15928295327 + ... + 15928309202.

Almost surely, 2^{221021122222202} is an apocalyptic number.

221021122222202 is a deficient number, since it is larger than the sum of its proper divisors (110606130935098).

221021122222202 is a wasteful number, since it uses less digits than its factorization.

221021122222202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31856608000.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 221021122222202 its reverse (202222221120122), we get a palindrome (423243343342324).

The spelling of 221021122222202 in words is "two hundred twenty-one trillion, twenty-one billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred two".