22000200201221 has 16 divisors (see below), whose sum is σ = 24033568485888. Its totient is φ = 19972398994800.

The previous prime is 22000200201191. The next prime is 22000200201223. The reversal of 22000200201221 is 12210200200022.

It is a cyclic number.

It is not a de Polignac number, because 22000200201221 - 2⁶ = 22000200201157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22000200201196 and 22000200201205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000200201223) 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, 50937386 + ... + 51367476.

It is an arithmetic number, because the mean of its divisors is an integer number (1502098030368).

Almost surely, 2^{22000200201221} is an apocalyptic number.

It is an amenable number.

22000200201221 is a deficient number, since it is larger than the sum of its proper divisors (2033368284667).

22000200201221 is a wasteful number, since it uses less digits than its factorization.

22000200201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436552.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22000200201221 its reverse (12210200200022), we get a palindrome (34210400401243).

The spelling of 22000200201221 in words is "twenty-two trillion, two hundred million, two hundred one thousand, two hundred twenty-one".