22113325421 has 8 divisors (see below), whose sum is σ = 24129027264. Its totient is φ = 20098523520.

The previous prime is 22113325361. The next prime is 22113325447. The reversal of 22113325421 is 12452331122.

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 22113325421 - 2³⁴ = 4933456237 is a prime.

It is a super-2 number, since 2×22113325421² (a number of 21 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 (22113325621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173081 + ... + 272366.

It is an arithmetic number, because the mean of its divisors is an integer number (3016128408).

Almost surely, 2^22113325421 is an apocalyptic number.

It is an amenable number.

22113325421 is a deficient number, since it is larger than the sum of its proper divisors (2015701843).

22113325421 is a wasteful number, since it uses less digits than its factorization.

22113325421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449971.

The product of its digits is 2880, while the sum is 26.

Adding to 22113325421 its reverse (12452331122), we get a palindrome (34565656543).

The spelling of 22113325421 in words is "twenty-two billion, one hundred thirteen million, three hundred twenty-five thousand, four hundred twenty-one".