211202200011221 has 8 divisors (see below), whose sum is σ = 211400642700000. Its totient is φ = 211003788181680.

The previous prime is 211202200011211. The next prime is 211202200011293. The reversal of 211202200011221 is 122110002202112.

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 211202200011221 - 2²² = 211202195816917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211202200011221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211202200011211) 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, 5991155 + ... + 21407903.

It is an arithmetic number, because the mean of its divisors is an integer number (26425080337500).

Almost surely, 2^{211202200011221} is an apocalyptic number.

It is an amenable number.

211202200011221 is a deficient number, since it is larger than the sum of its proper divisors (198442688779).

211202200011221 is a wasteful number, since it uses less digits than its factorization.

211202200011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15429619.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211202200011221 its reverse (122110002202112), we get a palindrome (333312202213333).

The spelling of 211202200011221 in words is "two hundred eleven trillion, two hundred two billion, two hundred million, eleven thousand, two hundred twenty-one".