202221122011 has 4 divisors (see below), whose sum is σ = 202233252832. Its totient is φ = 202208991192.

The previous prime is 202221121987. The next prime is 202221122029. The reversal of 202221122011 is 110221122202.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 202221122011 - 2³⁵ = 167861383643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202221122711) 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, 6040371 + ... + 6073756.

It is an arithmetic number, because the mean of its divisors is an integer number (50558313208).

Almost surely, 2^202221122011 is an apocalyptic number.

202221122011 is a deficient number, since it is larger than the sum of its proper divisors (12130821).

202221122011 is a wasteful number, since it uses less digits than its factorization.

202221122011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12130820.

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

Adding to 202221122011 its reverse (110221122202), we get a palindrome (312442244213).

The spelling of 202221122011 in words is "two hundred two billion, two hundred twenty-one million, one hundred twenty-two thousand, eleven".