22201443022221 has 24 divisors (see below), whose sum is σ = 32682716015040. Its totient is φ = 14520279519936.

The previous prime is 22201443022151. The next prime is 22201443022267. The reversal of 22201443022221 is 12222034410222.

22201443022221 is a `hidden beast` number, since 2 + 2 + 2 + 0 + 1 + 4 + 430 + 2 + 2 + 221 = 666.

It is not a de Polignac number, because 22201443022221 - 2³⁸ = 21926565115277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201443022621) 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, 111815656 + ... + 112014033.

It is an arithmetic number, because the mean of its divisors is an integer number (1361779833960).

Almost surely, 2^{22201443022221} is an apocalyptic number.

It is an amenable number.

22201443022221 is a deficient number, since it is larger than the sum of its proper divisors (10481272992819).

22201443022221 is a wasteful number, since it uses less digits than its factorization.

22201443022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223829905 (or 223829902 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 22201443022221 its reverse (12222034410222), we get a palindrome (34423477432443).

The spelling of 22201443022221 in words is "twenty-two trillion, two hundred one billion, four hundred forty-three million, twenty-two thousand, two hundred twenty-one".