221010100210211 has 16 divisors (see below), whose sum is σ = 239662735038720. Its totient is φ = 202597918640640.

The previous prime is 221010100210103. The next prime is 221010100210217. The reversal of 221010100210211 is 112012001010122.

It is a cyclic number.

It is not a de Polignac number, because 221010100210211 - 2⁴⁶ = 150641356032547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221010100210217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92013170 + ... + 94384551.

It is an arithmetic number, because the mean of its divisors is an integer number (14978920939920).

Almost surely, 2^{221010100210211} is an apocalyptic number.

221010100210211 is a deficient number, since it is larger than the sum of its proper divisors (18652634828509).

221010100210211 is a wasteful number, since it uses less digits than its factorization.

221010100210211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186398366.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 221010100210211 its reverse (112012001010122), we get a palindrome (333022101220333).

The spelling of 221010100210211 in words is "two hundred twenty-one trillion, ten billion, one hundred million, two hundred ten thousand, two hundred eleven".