221000020202 has 16 divisors (see below), whose sum is σ = 357391948032. Its totient is φ = 101888033520.

The previous prime is 221000020193. The next prime is 221000020229. The reversal of 221000020202 is 202020000122.

221000020202 is digitally balanced in base 3, 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, 4641518 + ... + 4688889.

It is an arithmetic number, because the mean of its divisors is an integer number (22336996752).

Almost surely, 2^221000020202 is an apocalyptic number.

221000020202 is a deficient number, since it is larger than the sum of its proper divisors (136391927830).

221000020202 is a wasteful number, since it uses less digits than its factorization.

221000020202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9331333.

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 221000020202 its reverse (202020000122), we get a palindrome (423020020324).

The spelling of 221000020202 in words is "two hundred twenty-one billion, twenty thousand, two hundred two".