20224424402121 has 4 divisors (see below), whose sum is σ = 26965899202832. Its totient is φ = 13482949601412.

The previous prime is 20224424402111. The next prime is 20224424402179. The reversal of 20224424402121 is 12120442442202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20224424402121 - 2⁵ = 20224424402089 is a prime.

It is a super-3 number, since 3×20224424402121³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20224424402111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3370737400351 + ... + 3370737400356.

It is an arithmetic number, because the mean of its divisors is an integer number (6741474800708).

Almost surely, 2^{20224424402121} is an apocalyptic number.

It is an amenable number.

20224424402121 is a deficient number, since it is larger than the sum of its proper divisors (6741474800711).

20224424402121 is an equidigital number, since it uses as much as digits as its factorization.

20224424402121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6741474800710.

The product of its (nonzero) digits is 16384, while the sum is 30.

Adding to 20224424402121 its reverse (12120442442202), we get a palindrome (32344866844323).

The spelling of 20224424402121 in words is "twenty trillion, two hundred twenty-four billion, four hundred twenty-four million, four hundred two thousand, one hundred twenty-one".