221202010202 has 16 divisors (see below), whose sum is σ = 338128129512. Its totient is φ = 108493432320.

The previous prime is 221202010193. The next prime is 221202010217. The reversal of 221202010202 is 202010202122.

It can be written as a sum of positive squares in 4 ways, for example, as 202553103481 + 18648906721 = 450059^2 + 136561^2 .

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, 364502 + ... + 758462.

Almost surely, 2^221202010202 is an apocalyptic number.

221202010202 is a deficient number, since it is larger than the sum of its proper divisors (116926119310).

221202010202 is a wasteful number, since it uses less digits than its factorization.

221202010202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399313.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 221202010202 its reverse (202010202122), we get a palindrome (423212212324).

It can be divided in two parts, 2212020 and 10202, that added together give a palindrome (2222222).

The spelling of 221202010202 in words is "two hundred twenty-one billion, two hundred two million, ten thousand, two hundred two".