20221404243031 has 4 divisors (see below), whose sum is σ = 20244201768432. Its totient is φ = 20198606717632.

The previous prime is 20221404243023. The next prime is 20221404243059. The reversal of 20221404243031 is 13034240412202.

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 20221404243031 - 2³ = 20221404243023 is a prime.

It is a super-2 number, since 2×20221404243031² (a number of 27 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 (20221404244031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11398761370 + ... + 11398763143.

It is an arithmetic number, because the mean of its divisors is an integer number (5061050442108).

Almost surely, 2^{20221404243031} is an apocalyptic number.

20221404243031 is a deficient number, since it is larger than the sum of its proper divisors (22797525401).

20221404243031 is an equidigital number, since it uses as much as digits as its factorization.

20221404243031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22797525400.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 20221404243031 its reverse (13034240412202), we get a palindrome (33255644655233).

The spelling of 20221404243031 in words is "twenty trillion, two hundred twenty-one billion, four hundred four million, two hundred forty-three thousand, thirty-one".