212220011222211 has 16 divisors (see below), whose sum is σ = 283138163529984. Its totient is φ = 141390934892064.

The previous prime is 212220011222209. The next prime is 212220011222287. The reversal of 212220011222211 is 112222110022212.

It is not a de Polignac number, because 212220011222211 - 2¹ = 212220011222209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212220011223211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 897646960 + ... + 897883346.

It is an arithmetic number, because the mean of its divisors is an integer number (17696135220624).

Almost surely, 2^{212220011222211} is an apocalyptic number.

212220011222211 is a deficient number, since it is larger than the sum of its proper divisors (70918152307773).

212220011222211 is a wasteful number, since it uses less digits than its factorization.

212220011222211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423530.

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

Adding to 212220011222211 its reverse (112222110022212), we get a palindrome (324442121244423).

The spelling of 212220011222211 in words is "two hundred twelve trillion, two hundred twenty billion, eleven million, two hundred twenty-two thousand, two hundred eleven".