20020202002111 has 4 divisors (see below), whose sum is σ = 20055263652424. Its totient is φ = 19985140351800.

The previous prime is 20020202002043. The next prime is 20020202002243. The reversal of 20020202002111 is 11120020202002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20020202002111 - 2⁹ = 20020202001599 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20020202002091 and 20020202002100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020202032111) 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, 17530824300 + ... + 17530825441.

It is an arithmetic number, because the mean of its divisors is an integer number (5013815913106).

Almost surely, 2^{20020202002111} is an apocalyptic number.

20020202002111 is a deficient number, since it is larger than the sum of its proper divisors (35061650313).

20020202002111 is an equidigital number, since it uses as much as digits as its factorization.

20020202002111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35061650312.

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

Adding to 20020202002111 its reverse (11120020202002), we get a palindrome (31140222204113).

It can be divided in two parts, 20020202002 and 111, that multiplied together give a palindrome (2222242422222).

The spelling of 20020202002111 in words is "twenty trillion, twenty billion, two hundred two million, two thousand, one hundred eleven".