211120122212209 has 4 divisors (see below), whose sum is σ = 241280139671104. Its totient is φ = 180960104753316.

The previous prime is 211120122212203. The next prime is 211120122212249. The reversal of 211120122212209 is 902212221021112.

211120122212209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 211120122212209 - 2¹¹ = 211120122210161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211120122212203) 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, 15080008729437 + ... + 15080008729450.

It is an arithmetic number, because the mean of its divisors is an integer number (60320034917776).

Almost surely, 2^{211120122212209} is an apocalyptic number.

It is an amenable number.

211120122212209 is a deficient number, since it is larger than the sum of its proper divisors (30160017458895).

211120122212209 is an equidigital number, since it uses as much as digits as its factorization.

211120122212209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30160017458894.

The product of its (nonzero) digits is 1152, while the sum is 28.

The spelling of 211120122212209 in words is "two hundred eleven trillion, one hundred twenty billion, one hundred twenty-two million, two hundred twelve thousand, two hundred nine".