22141112421 has 4 divisors (see below), whose sum is σ = 29521483232. Its totient is φ = 14760741612.

The previous prime is 22141112417. The next prime is 22141112437. The reversal of 22141112421 is 12421114122.

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 22141112421 - 2² = 22141112417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22141112401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3690185401 + ... + 3690185406.

It is an arithmetic number, because the mean of its divisors is an integer number (7380370808).

Almost surely, 2^22141112421 is an apocalyptic number.

It is an amenable number.

22141112421 is a deficient number, since it is larger than the sum of its proper divisors (7380370811).

22141112421 is an equidigital number, since it uses as much as digits as its factorization.

22141112421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7380370810.

The product of its digits is 256, while the sum is 21.

Adding to 22141112421 its reverse (12421114122), we get a palindrome (34562226543).

The spelling of 22141112421 in words is "twenty-two billion, one hundred forty-one million, one hundred twelve thousand, four hundred twenty-one".