20022131110231 has 4 divisors (see below), whose sum is σ = 20022336725152. Its totient is φ = 20021925495312.

The previous prime is 20022131110181. The next prime is 20022131110327. The reversal of 20022131110231 is 13201113122002.

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 20022131110231 - 2⁷ = 20022131110103 is a prime.

It is a super-2 number, since 2×20022131110231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20022131110199 and 20022131110208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022131170231) 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, 102661326 + ... + 102856171.

It is an arithmetic number, because the mean of its divisors is an integer number (5005584181288).

Almost surely, 2^{20022131110231} is an apocalyptic number.

20022131110231 is a deficient number, since it is larger than the sum of its proper divisors (205614921).

20022131110231 is an equidigital number, since it uses as much as digits as its factorization.

20022131110231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205614920.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 20022131110231 its reverse (13201113122002), we get a palindrome (33223244232233).

The spelling of 20022131110231 in words is "twenty trillion, twenty-two billion, one hundred thirty-one million, one hundred ten thousand, two hundred thirty-one".