21220200222211 has 8 divisors (see below), whose sum is σ = 21229351228800. Its totient is φ = 21211050211200.

The previous prime is 21220200222197. The next prime is 21220200222341. The reversal of 21220200222211 is 11222200202212.

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 21220200222211 - 2¹⁹ = 21220199697923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21220200222811) 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, 44083035 + ... + 44561803.

It is an arithmetic number, because the mean of its divisors is an integer number (2653668903600).

Almost surely, 2^{21220200222211} is an apocalyptic number.

21220200222211 is a deficient number, since it is larger than the sum of its proper divisors (9151006589).

21220200222211 is a wasteful number, since it uses less digits than its factorization.

21220200222211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497789.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 21220200222211 its reverse (11222200202212), we get a palindrome (32442400424423).

The spelling of 21220200222211 in words is "twenty-one trillion, two hundred twenty billion, two hundred million, two hundred twenty-two thousand, two hundred eleven".