22001421403 has 16 divisors (see below), whose sum is σ = 25621384320. Its totient is φ = 18707659776.

The previous prime is 22001421383. The next prime is 22001421413. The reversal of 22001421403 is 30412410022.

It is a de Polignac number, because none of the positive numbers 2^k-22001421403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22001421413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1048698 + ... + 1069471.

It is an arithmetic number, because the mean of its divisors is an integer number (1601336520).

Almost surely, 2^22001421403 is an apocalyptic number.

22001421403 is a deficient number, since it is larger than the sum of its proper divisors (3619962917).

22001421403 is a wasteful number, since it uses less digits than its factorization.

22001421403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2118246.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 22001421403 its reverse (30412410022), we get a palindrome (52413831425).

The spelling of 22001421403 in words is "twenty-two billion, one million, four hundred twenty-one thousand, four hundred three".