202211021009 has 2 divisors, whose sum is σ = 202211021010. Its totient is φ = 202211021008.

The previous prime is 202211020967. The next prime is 202211021083. The reversal of 202211021009 is 900120112202.

It is a happy number.

202211021009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 186929116609 + 15281904400 = 432353^2 + 123620^2 .

It is a cyclic number.

It is not a de Polignac number, because 202211021009 - 2²⁸ = 201942585553 is a prime.

It is not a weakly prime, because it can be changed into another prime (202211020009) 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, 101105510504 + 101105510505.

It is an arithmetic number, because the mean of its divisors is an integer number (101105510505).

Almost surely, 2^202211021009 is an apocalyptic number.

It is an amenable number.

202211021009 is a deficient number, since it is larger than the sum of its proper divisors (1).

202211021009 is an equidigital number, since it uses as much as digits as its factorization.

202211021009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 202211021009 in words is "two hundred two billion, two hundred eleven million, twenty-one thousand, nine".