221332102202 has 4 divisors (see below), whose sum is σ = 331998153306. Its totient is φ = 110666051100.

The previous prime is 221332102169. The next prime is 221332102207. The reversal of 221332102202 is 202201233122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 211205504041 + 10126598161 = 459571^2 + 100631^2 .

It is not an unprimeable number, because it can be changed into a prime (221332102207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55333025549 + ... + 55333025552.

Almost surely, 2^221332102202 is an apocalyptic number.

221332102202 is a deficient number, since it is larger than the sum of its proper divisors (110666051104).

221332102202 is a wasteful number, since it uses less digits than its factorization.

221332102202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110666051103.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 221332102202 its reverse (202201233122), we get a palindrome (423533335324).

The spelling of 221332102202 in words is "two hundred twenty-one billion, three hundred thirty-two million, one hundred two thousand, two hundred two".