221332121202 has 8 divisors (see below), whose sum is σ = 442664242416. Its totient is φ = 73777373732.

The previous prime is 221332121167. The next prime is 221332121267. The reversal of 221332121202 is 202121233122.

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

221332121202 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18444343428 + ... + 18444343439.

It is an arithmetic number, because the mean of its divisors is an integer number (55333030302).

Almost surely, 2^221332121202 is an apocalyptic number.

221332121202 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221332121202 is a wasteful number, since it uses less digits than its factorization.

221332121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36888686872.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 221332121202 its reverse (202121233122), we get a palindrome (423453354324).

The spelling of 221332121202 in words is "two hundred twenty-one billion, three hundred thirty-two million, one hundred twenty-one thousand, two hundred two".