202221020011 has 4 divisors (see below), whose sum is σ = 202243646224. Its totient is φ = 202198393800.

The previous prime is 202221019997. The next prime is 202221020033. The reversal of 202221020011 is 110020122202.

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 202221020011 - 2¹⁹ = 202220495723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202221019973 and 202221020000.

It is not an unprimeable number, because it can be changed into a prime (202221020081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11299695 + ... + 11317576.

It is an arithmetic number, because the mean of its divisors is an integer number (50560911556).

Almost surely, 2^202221020011 is an apocalyptic number.

202221020011 is a deficient number, since it is larger than the sum of its proper divisors (22626213).

202221020011 is an equidigital number, since it uses as much as digits as its factorization.

202221020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22626212.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 202221020011 its reverse (110020122202), we get a palindrome (312241142213).

The spelling of 202221020011 in words is "two hundred two billion, two hundred twenty-one million, twenty thousand, eleven".