211222010011211 has 4 divisors (see below), whose sum is σ = 211222683888000. Its totient is φ = 211221336134424.

The previous prime is 211222010011183. The next prime is 211222010011231. The reversal of 211222010011211 is 112110010222112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211222010011211 - 2⁶ = 211222010011147 is a prime.

It is a super-2 number, since 2×211222010011211² (a number of 29 digits) contains 22 as substring.

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 211222010011211.

It is not an unprimeable number, because it can be changed into a prime (211222010011231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336468011 + ... + 337095188.

It is an arithmetic number, because the mean of its divisors is an integer number (52805670972000).

Almost surely, 2^{211222010011211} is an apocalyptic number.

211222010011211 is a deficient number, since it is larger than the sum of its proper divisors (673876789).

211222010011211 is an equidigital number, since it uses as much as digits as its factorization.

211222010011211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673876788.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 211222010011211 its reverse (112110010222112), we get a palindrome (323332020233323).

The spelling of 211222010011211 in words is "two hundred eleven trillion, two hundred twenty-two billion, ten million, eleven thousand, two hundred eleven".