212021101211 has 8 divisors (see below), whose sum is σ = 229968368784. Its totient is φ = 194682215680.

The previous prime is 212021101183. The next prime is 212021101219. The reversal of 212021101211 is 112101120212.

212021101211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212021101211 - 2¹⁴ = 212021084827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212021101219) 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 7 ways as a sum of consecutive naturals, for example, 152094785 + ... + 152096178.

It is an arithmetic number, because the mean of its divisors is an integer number (28746046098).

Almost surely, 2^212021101211 is an apocalyptic number.

212021101211 is a deficient number, since it is larger than the sum of its proper divisors (17947267573).

212021101211 is a wasteful number, since it uses less digits than its factorization.

212021101211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304191021.

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

Adding to 212021101211 its reverse (112101120212), we get a palindrome (324122221423).

The spelling of 212021101211 in words is "two hundred twelve billion, twenty-one million, one hundred one thousand, two hundred eleven".