220202011009 has 4 divisors (see below), whose sum is σ = 220203187204. Its totient is φ = 220200834816.

The previous prime is 220202010979. The next prime is 220202011039. The reversal of 220202011009 is 900110202022.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (220202010979) and next prime (220202011039).

It can be written as a sum of positive squares in 2 ways, for example, as 30720273984 + 189481737025 = 175272^2 + 435295^2 .

It is a cyclic number.

It is not a de Polignac number, because 220202011009 - 2³⁷ = 82763057537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220202011039) 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, 237672 + ... + 704905.

It is an arithmetic number, because the mean of its divisors is an integer number (55050796801).

Almost surely, 2^220202011009 is an apocalyptic number.

It is an amenable number.

220202011009 is a deficient number, since it is larger than the sum of its proper divisors (1176195).

220202011009 is an equidigital number, since it uses as much as digits as its factorization.

220202011009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176194.

The product of its (nonzero) digits is 144, while the sum is 19.

The spelling of 220202011009 in words is "two hundred twenty billion, two hundred two million, eleven thousand, nine".