20020002221101 has 4 divisors (see below), whose sum is σ = 20020012310592. Its totient is φ = 20019992131612.

The previous prime is 20020002221069. The next prime is 20020002221123. The reversal of 20020002221101 is 10112220002002.

It is a happy number.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20020002221101 - 2⁵ = 20020002221069 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 (20020002221161) 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, 972805 + ... + 6402058.

It is an arithmetic number, because the mean of its divisors is an integer number (5005003077648).

Almost surely, 2^{20020002221101} is an apocalyptic number.

It is an amenable number.

20020002221101 is a deficient number, since it is larger than the sum of its proper divisors (10089491).

20020002221101 is an equidigital number, since it uses as much as digits as its factorization.

20020002221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10089490.

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

Adding to 20020002221101 its reverse (10112220002002), we get a palindrome (30132222223103).

The spelling of 20020002221101 in words is "twenty trillion, twenty billion, two million, two hundred twenty-one thousand, one hundred one".