211210210002221 has 8 divisors (see below), whose sum is σ = 214364682386400. Its totient is φ = 208055798829648.

The previous prime is 211210210002191. The next prime is 211210210002299. The reversal of 211210210002221 is 122200012012112.

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 211210210002221 - 2¹⁴ = 211210209985837 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 211210210002221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211210210001221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8326811 + ... + 22175576.

It is an arithmetic number, because the mean of its divisors is an integer number (26795585298300).

Almost surely, 2^{211210210002221} is an apocalyptic number.

It is an amenable number.

211210210002221 is a deficient number, since it is larger than the sum of its proper divisors (3154472384179).

211210210002221 is a wasteful number, since it uses less digits than its factorization.

211210210002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30605803.

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

Adding to 211210210002221 its reverse (122200012012112), we get a palindrome (333410222014333).

The spelling of 211210210002221 in words is "two hundred eleven trillion, two hundred ten billion, two hundred ten million, two thousand, two hundred twenty-one".