211010222122221 has 32 divisors (see below), whose sum is σ = 283566655139328. Its totient is φ = 139568149647360.

The previous prime is 211010222122199. The next prime is 211010222122243. The reversal of 211010222122221 is 122221222010112.

It is an interprime number because it is at equal distance from previous prime (211010222122199) and next prime (211010222122243).

It is not a de Polignac number, because 211010222122221 - 2⁷ = 211010222122093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211010222142221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 320558796 + ... + 321216378.

It is an arithmetic number, because the mean of its divisors is an integer number (8861457973104).

Almost surely, 2^{211010222122221} is an apocalyptic number.

It is an amenable number.

211010222122221 is a deficient number, since it is larger than the sum of its proper divisors (72556433017107).

211010222122221 is a wasteful number, since it uses less digits than its factorization.

211010222122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659301.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 211010222122221 its reverse (122221222010112), we get a palindrome (333231444132333).

The spelling of 211010222122221 in words is "two hundred eleven trillion, ten billion, two hundred twenty-two million, one hundred twenty-two thousand, two hundred twenty-one".