20221304412031 has 4 divisors (see below), whose sum is σ = 20274101551872. Its totient is φ = 20168507272192.

The previous prime is 20221304412019. The next prime is 20221304412041. The reversal of 20221304412031 is 13021440312202.

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 20221304412031 - 2⁹ = 20221304411519 is a prime.

It is a super-2 number, since 2×20221304412031² (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 = 20221304411987 and 20221304412005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221304412011) 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, 26398569346 + ... + 26398570111.

It is an arithmetic number, because the mean of its divisors is an integer number (5068525387968).

Almost surely, 2^{20221304412031} is an apocalyptic number.

20221304412031 is a deficient number, since it is larger than the sum of its proper divisors (52797139841).

20221304412031 is an equidigital number, since it uses as much as digits as its factorization.

20221304412031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52797139840.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 20221304412031 its reverse (13021440312202), we get a palindrome (33242744724233).

The spelling of 20221304412031 in words is "twenty trillion, two hundred twenty-one billion, three hundred four million, four hundred twelve thousand, thirty-one".