2200021211221 has 8 divisors (see below), whose sum is σ = 2211741722624. Its totient is φ = 2188327188240.

The previous prime is 2200021211207. The next prime is 2200021211237. The reversal of 2200021211221 is 1221121200022.

It is a happy number.

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 2200021211221 - 2¹⁷ = 2200021080149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2200021211195 and 2200021211204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2200022211221) 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 7 ways as a sum of consecutive naturals, for example, 6455541 + ... + 6787786.

It is an arithmetic number, because the mean of its divisors is an integer number (276467715328).

Almost surely, 2^{2200021211221} is an apocalyptic number.

It is an amenable number.

2200021211221 is a deficient number, since it is larger than the sum of its proper divisors (11720511403).

2200021211221 is a wasteful number, since it uses less digits than its factorization.

2200021211221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13244211.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2200021211221 its reverse (1221121200022), we get a palindrome (3421142411243).

The spelling of 2200021211221 in words is "two trillion, two hundred billion, twenty-one million, two hundred eleven thousand, two hundred twenty-one".