210011202221221 has 8 divisors (see below), whose sum is σ = 210618173314080. Its totient is φ = 209404241195088.

The previous prime is 210011202221201. The next prime is 210011202221243. The reversal of 210011202221221 is 122122202110012.

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 210011202221221 - 2¹⁷ = 210011202090149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210011202221201) 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, 40319470 + ... + 45229216.

It is an arithmetic number, because the mean of its divisors is an integer number (26327271664260).

Almost surely, 2^{210011202221221} is an apocalyptic number.

It is an amenable number.

210011202221221 is a deficient number, since it is larger than the sum of its proper divisors (606971092859).

210011202221221 is a wasteful number, since it uses less digits than its factorization.

210011202221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5033363.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 210011202221221 its reverse (122122202110012), we get a palindrome (332133404331233).

The spelling of 210011202221221 in words is "two hundred ten trillion, eleven billion, two hundred two million, two hundred twenty-one thousand, two hundred twenty-one".