22203223404021 has 24 divisors (see below), whose sum is σ = 34987505151456. Its totient is φ = 13456265315040.

The previous prime is 22203223404017. The next prime is 22203223404041. The reversal of 22203223404021 is 12040432230222.

22203223404021 is a `hidden beast` number, since 2 + 2 + 20 + 3 + 2 + 234 + 0 + 402 + 1 = 666.

It is not a de Polignac number, because 22203223404021 - 2² = 22203223404017 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22203223404041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3868426 + ... + 7705268.

It is an arithmetic number, because the mean of its divisors is an integer number (1457812714644).

Almost surely, 2^{22203223404021} is an apocalyptic number.

It is an amenable number.

22203223404021 is a deficient number, since it is larger than the sum of its proper divisors (12784281747435).

22203223404021 is a wasteful number, since it uses less digits than its factorization.

22203223404021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3895313 (or 3895310 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 22203223404021 its reverse (12040432230222), we get a palindrome (34243655634243).

The spelling of 22203223404021 in words is "twenty-two trillion, two hundred three billion, two hundred twenty-three million, four hundred four thousand, twenty-one".