22020202109 has 4 divisors (see below), whose sum is σ = 22028448960. Its totient is φ = 22011955260.

The previous prime is 22020202091. The next prime is 22020202147. The reversal of 22020202109 is 90120202022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90120202022 = 2 ⋅45060101011.

It is a cyclic number.

It is not a de Polignac number, because 22020202109 - 2²⁸ = 21751766653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020202159) 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, 4119419 + ... + 4124760.

It is an arithmetic number, because the mean of its divisors is an integer number (5507112240).

Almost surely, 2^22020202109 is an apocalyptic number.

It is an amenable number.

22020202109 is a deficient number, since it is larger than the sum of its proper divisors (8246851).

22020202109 is an equidigital number, since it uses as much as digits as its factorization.

22020202109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8246850.

The product of its (nonzero) digits is 288, while the sum is 20.

The spelling of 22020202109 in words is "twenty-two billion, twenty million, two hundred two thousand, one hundred nine".