211122010212011 has 4 divisors (see below), whose sum is σ = 216031824403032. Its totient is φ = 206212196020992.

The previous prime is 211122010211909. The next prime is 211122010212031. The reversal of 211122010212011 is 110212010221112.

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 211122010212011 - 2⁴² = 206723963700907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211122010212031) 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, 2454907095446 + ... + 2454907095531.

It is an arithmetic number, because the mean of its divisors is an integer number (54007956100758).

Almost surely, 2^{211122010212011} is an apocalyptic number.

211122010212011 is a deficient number, since it is larger than the sum of its proper divisors (4909814191021).

211122010212011 is an equidigital number, since it uses as much as digits as its factorization.

211122010212011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4909814191020.

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

Adding to 211122010212011 its reverse (110212010221112), we get a palindrome (321334020433123).

The spelling of 211122010212011 in words is "two hundred eleven trillion, one hundred twenty-two billion, ten million, two hundred twelve thousand, eleven".