221120100012202 has 4 divisors (see below), whose sum is σ = 331680150018306. Its totient is φ = 110560050006100.

The previous prime is 221120100012181. The next prime is 221120100012209. The reversal of 221120100012202 is 202210001021122.

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., 130456167471081 + 90663932541121 = 11421741^2 + 9521761^2 .

It is not an unprimeable number, because it can be changed into a prime (221120100012209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55280025003049 + ... + 55280025003052.

Almost surely, 2^{221120100012202} is an apocalyptic number.

221120100012202 is a deficient number, since it is larger than the sum of its proper divisors (110560050006104).

221120100012202 is a wasteful number, since it uses less digits than its factorization.

221120100012202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110560050006103.

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

Adding to 221120100012202 its reverse (202210001021122), we get a palindrome (423330101033324).

The spelling of 221120100012202 in words is "two hundred twenty-one trillion, one hundred twenty billion, one hundred million, twelve thousand, two hundred two".