22002200122221 has 64 divisors (see below), whose sum is σ = 37667407760640. Its totient is φ = 12544746577920.

The previous prime is 22002200122121. The next prime is 22002200122223. The reversal of 22002200122221 is 12222100220022.

22002200122221 is a `hidden beast` number, since 2 + 200 + 220 + 0 + 1 + 22 + 221 = 666.

It is not a de Polignac number, because 22002200122221 - 2¹⁵ = 22002200089453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22002200122194 and 22002200122203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22002200122223) 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 63 ways as a sum of consecutive naturals, for example, 10517791 + ... + 12434963.

It is an arithmetic number, because the mean of its divisors is an integer number (588553246260).

Almost surely, 2^{22002200122221} is an apocalyptic number.

It is an amenable number.

22002200122221 is a deficient number, since it is larger than the sum of its proper divisors (15665207638419).

22002200122221 is a wasteful number, since it uses less digits than its factorization.

22002200122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1919483 (or 1919477 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22002200122221 its reverse (12222100220022), we get a palindrome (34224300342243).

The spelling of 22002200122221 in words is "twenty-two trillion, two billion, two hundred million, one hundred twenty-two thousand, two hundred twenty-one".