22020200001221 has 8 divisors (see below), whose sum is σ = 23011708266624. Its totient is φ = 21050483126400.

The previous prime is 22020200001199. The next prime is 22020200001227. The reversal of 22020200001221 is 12210000202022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22020200001221 - 2¹⁸ = 22020199739077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22020200001196 and 22020200001205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020200001227) 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 7 ways as a sum of consecutive naturals, for example, 5447845580 + ... + 5447849621.

It is an arithmetic number, because the mean of its divisors is an integer number (2876463533328).

Almost surely, 2^{22020200001221} is an apocalyptic number.

It is an amenable number.

22020200001221 is a deficient number, since it is larger than the sum of its proper divisors (991508265403).

22020200001221 is a wasteful number, since it uses less digits than its factorization.

22020200001221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10895695291.

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

Adding to 22020200001221 its reverse (12210000202022), we get a palindrome (34230200203243).

The spelling of 22020200001221 in words is "twenty-two trillion, twenty billion, two hundred million, one thousand, two hundred twenty-one".