20020111223 has 8 divisors (see below), whose sum is σ = 23106663840. Its totient is φ = 16990192800.

The previous prime is 20020111091. The next prime is 20020111231. The reversal of 20020111223 is 32211102002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20020111223 - 2¹⁴ = 20020094839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20020111198 and 20020111207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020111253) 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 in 7 ways as a sum of consecutive naturals, for example, 14157788 + ... + 14159201.

It is an arithmetic number, because the mean of its divisors is an integer number (2888332980).

Almost surely, 2^20020111223 is an apocalyptic number.

20020111223 is a deficient number, since it is larger than the sum of its proper divisors (3086552617).

20020111223 is a wasteful number, since it uses less digits than its factorization.

20020111223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28317097.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20020111223 its reverse (32211102002), we get a palindrome (52231213225).

The spelling of 20020111223 in words is "twenty billion, twenty million, one hundred eleven thousand, two hundred twenty-three".