210011202222221 has 16 divisors (see below), whose sum is σ = 213492656966400. Its totient is φ = 206544634248960.

The previous prime is 210011202222209. The next prime is 210011202222277. The reversal of 210011202222221 is 122222202110012.

It is a cyclic number.

It is not a de Polignac number, because 210011202222221 - 2³⁸ = 209736324315277 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210011202222193 and 210011202222202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210011202222281) 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 15 ways as a sum of consecutive naturals, for example, 84421205 + ... + 86873253.

It is an arithmetic number, because the mean of its divisors is an integer number (13343291060400).

Almost surely, 2^{210011202222221} is an apocalyptic number.

It is an amenable number.

210011202222221 is a deficient number, since it is larger than the sum of its proper divisors (3481454744179).

210011202222221 is a wasteful number, since it uses less digits than its factorization.

210011202222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2455084.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 210011202222221 its reverse (122222202110012), we get a palindrome (332233404332233).

The spelling of 210011202222221 in words is "two hundred ten trillion, eleven billion, two hundred two million, two hundred twenty-two thousand, two hundred twenty-one".