211120012120011 has 32 divisors (see below), whose sum is σ = 286287139307520. Its totient is φ = 138366143479200.

The previous prime is 211120012119893. The next prime is 211120012120037. The reversal of 211120012120011 is 110021210021112.

It is a happy number.

It is not a de Polignac number, because 211120012120011 - 2¹⁹ = 211120011595723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211120012120081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65575006 + ... + 68719148.

It is an arithmetic number, because the mean of its divisors is an integer number (8946473103360).

Almost surely, 2^{211120012120011} is an apocalyptic number.

211120012120011 is a deficient number, since it is larger than the sum of its proper divisors (75167127187509).

211120012120011 is a wasteful number, since it uses less digits than its factorization.

211120012120011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3145447.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 211120012120011 its reverse (110021210021112), we get a palindrome (321141222141123).

The spelling of 211120012120011 in words is "two hundred eleven trillion, one hundred twenty billion, twelve million, one hundred twenty thousand, eleven".