20221111231031 has 8 divisors (see below), whose sum is σ = 20472265873920. Its totient is φ = 19970135797752.

The previous prime is 20221111231001. The next prime is 20221111231033. The reversal of 20221111231031 is 13013211112202.

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

It is a cyclic number.

It is not a de Polignac number, because 20221111231031 - 2⁶ = 20221111230967 is a prime.

It is a super-2 number, since 2×20221111231031² (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 = 20221111230994 and 20221111231012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221111231033) 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, 44575325 + ... + 45026678.

It is an arithmetic number, because the mean of its divisors is an integer number (2559033234240).

Almost surely, 2^{20221111231031} is an apocalyptic number.

20221111231031 is a deficient number, since it is larger than the sum of its proper divisors (251154642889).

20221111231031 is an equidigital number, since it uses as much as digits as its factorization.

20221111231031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89604805.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 20221111231031 its reverse (13013211112202), we get a palindrome (33234322343233).

The spelling of 20221111231031 in words is "twenty trillion, two hundred twenty-one billion, one hundred eleven million, two hundred thirty-one thousand, thirty-one".