20224231111 has 4 divisors (see below), whose sum is σ = 23113406992. Its totient is φ = 17335055232.

The previous prime is 20224231073. The next prime is 20224231121. The reversal of 20224231111 is 11113242202.

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

It is a cyclic number.

It is not a de Polignac number, because 20224231111 - 2¹¹ = 20224229063 is a prime.

It is a super-2 number, since 2×20224231111² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20224231121) 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 3 ways as a sum of consecutive naturals, for example, 1444587930 + ... + 1444587943.

It is an arithmetic number, because the mean of its divisors is an integer number (5778351748).

Almost surely, 2^20224231111 is an apocalyptic number.

20224231111 is a deficient number, since it is larger than the sum of its proper divisors (2889175881).

20224231111 is an equidigital number, since it uses as much as digits as its factorization.

20224231111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2889175880.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 20224231111 its reverse (11113242202), we get a palindrome (31337473313).

The spelling of 20224231111 in words is "twenty billion, two hundred twenty-four million, two hundred thirty-one thousand, one hundred eleven".