221001100122202 has 16 divisors (see below), whose sum is σ = 350082413190720. Its totient is φ = 104422730385952.

The previous prime is 221001100122169. The next prime is 221001100122391. The reversal of 221001100122202 is 202221001100122.

It is a happy number.

221001100122202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 28941994627 + ... + 28942002262.

It is an arithmetic number, because the mean of its divisors is an integer number (21880150824420).

Almost surely, 2^{221001100122202} is an apocalyptic number.

221001100122202 is a deficient number, since it is larger than the sum of its proper divisors (129081313068518).

221001100122202 is a wasteful number, since it uses less digits than its factorization.

221001100122202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57883996997.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221001100122202 its reverse (202221001100122), we get a palindrome (423222101222324).

It can be divided in two parts, 221001100122 and 202, that multiplied together give a palindrome (44642222224644).

The spelling of 221001100122202 in words is "two hundred twenty-one trillion, one billion, one hundred million, one hundred twenty-two thousand, two hundred two".