221011022122202 has 8 divisors (see below), whose sum is σ = 357017804966676. Its totient is φ = 102005087133312.

The previous prime is 221011022122157. The next prime is 221011022122207. The reversal of 221011022122202 is 202221220110122.

It can be written as a sum of positive squares in 2 ways, for example, as 203183044384441 + 17827977737761 = 14254229^2 + 4222319^2 .

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

It is not an unprimeable number, because it can be changed into a prime (221011022122207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4250211963863 + ... + 4250211963914.

Almost surely, 2^{221011022122202} is an apocalyptic number.

221011022122202 is a deficient number, since it is larger than the sum of its proper divisors (136006782844474).

221011022122202 is a wasteful number, since it uses less digits than its factorization.

221011022122202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8500423927792.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 221011022122202 its reverse (202221220110122), we get a palindrome (423232242232324).

The spelling of 221011022122202 in words is "two hundred twenty-one trillion, eleven billion, twenty-two million, one hundred twenty-two thousand, two hundred two".