211210010221 has 8 divisors (see below), whose sum is σ = 241485560064. Its totient is φ = 180960133200.

The previous prime is 211210010197. The next prime is 211210010227. The reversal of 211210010221 is 122010012112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 211210010221 - 2¹⁹ = 211209485933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211210010227) 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, 6400570 + ... + 6433483.

It is an arithmetic number, because the mean of its divisors is an integer number (30185695008).

Almost surely, 2^211210010221 is an apocalyptic number.

It is an amenable number.

211210010221 is a deficient number, since it is larger than the sum of its proper divisors (30275549843).

211210010221 is a wasteful number, since it uses less digits than its factorization.

211210010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12836411.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 211210010221 its reverse (122010012112), we get a palindrome (333220022333).

The spelling of 211210010221 in words is "two hundred eleven billion, two hundred ten million, ten thousand, two hundred twenty-one".