22000210011221 has 8 divisors (see below), whose sum is σ = 23692649644440. Its totient is φ = 20307786918912.

The previous prime is 22000210011211. The next prime is 22000210011223. The reversal of 22000210011221 is 12211001200022.

It can be written as a sum of positive squares in 4 ways, for example, as 573217066321 + 21426992944900 = 757111^2 + 4628930^2 .

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 22000210011221 - 2¹⁰ = 22000210010197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22000210011196 and 22000210011205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000210011223) 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, 1300856 + ... + 6759633.

It is an arithmetic number, because the mean of its divisors is an integer number (2961581205555).

Almost surely, 2^{22000210011221} is an apocalyptic number.

It is an amenable number.

22000210011221 is a deficient number, since it is larger than the sum of its proper divisors (1692439633219).

22000210011221 is a wasteful number, since it uses less digits than its factorization.

22000210011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8270455.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22000210011221 its reverse (12211001200022), we get a palindrome (34211211211243).

The spelling of 22000210011221 in words is "twenty-two trillion, two hundred ten million, eleven thousand, two hundred twenty-one".