22211202010221 has 96 divisors (see below), whose sum is σ = 39418339004928. Its totient is φ = 11774897164800.

The previous prime is 22211202010213. The next prime is 22211202010229. The reversal of 22211202010221 is 12201020211222.

It is a happy number.

22211202010221 is a `hidden beast` number, since 2 + 221 + 1 + 20 + 201 + 0 + 221 = 666.

It is an interprime number because it is at equal distance from previous prime (22211202010213) and next prime (22211202010229).

It is not a de Polignac number, because 22211202010221 - 2³ = 22211202010213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22211202010194 and 22211202010203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22211202010229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16341871 + ... + 17648771.

It is an arithmetic number, because the mean of its divisors is an integer number (410607697968).

Almost surely, 2^{22211202010221} is an apocalyptic number.

22211202010221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22211202010221 is a deficient number, since it is larger than the sum of its proper divisors (17207136994707).

22211202010221 is a wasteful number, since it uses less digits than its factorization.

22211202010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307291 (or 1307288 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22211202010221 its reverse (12201020211222), we get a palindrome (34412222221443).

The spelling of 22211202010221 in words is "twenty-two trillion, two hundred eleven billion, two hundred two million, ten thousand, two hundred twenty-one".