212222211101211 has 32 divisors (see below), whose sum is σ = 290771163832320. Its totient is φ = 137624592478464.

The previous prime is 212222211101161. The next prime is 212222211101249. The reversal of 212222211101211 is 112101112222212.

It is not a de Polignac number, because 212222211101211 - 2¹³ = 212222211093019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212222211101011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25859911 + ... + 33063263.

It is an arithmetic number, because the mean of its divisors is an integer number (9086598869760).

Almost surely, 2^{212222211101211} is an apocalyptic number.

212222211101211 is a deficient number, since it is larger than the sum of its proper divisors (78548952731109).

212222211101211 is a wasteful number, since it uses less digits than its factorization.

212222211101211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7204995.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 212222211101211 its reverse (112101112222212), we get a palindrome (324323323323423).

The spelling of 212222211101211 in words is "two hundred twelve trillion, two hundred twenty-two billion, two hundred eleven million, one hundred one thousand, two hundred eleven".