22000203421 has 8 divisors (see below), whose sum is σ = 26622095040. Its totient is φ = 17748063168.

The previous prime is 22000203419. The next prime is 22000203431. The reversal of 22000203421 is 12430200022.

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 22000203421 - 2¹ = 22000203419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22000203395 and 22000203404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000203431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92437711 + ... + 92437948.

It is an arithmetic number, because the mean of its divisors is an integer number (3327761880).

Almost surely, 2^22000203421 is an apocalyptic number.

It is an amenable number.

22000203421 is a deficient number, since it is larger than the sum of its proper divisors (4621891619).

22000203421 is a wasteful number, since it uses less digits than its factorization.

22000203421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184875683.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 22000203421 its reverse (12430200022), we get a palindrome (34430403443).

The spelling of 22000203421 in words is "twenty-two billion, two hundred three thousand, four hundred twenty-one".