211120111021011 has 8 divisors (see below), whose sum is σ = 281493549100944. Its totient is φ = 140746706810880.

The previous prime is 211120111021007. The next prime is 211120111021067. The reversal of 211120111021011 is 110120111021112.

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

It is not a de Polignac number, because 211120111021011 - 2² = 211120111021007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211120111021811) 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 7 ways as a sum of consecutive naturals, for example, 17140851 + ... + 26759091.

It is an arithmetic number, because the mean of its divisors is an integer number (35186693637618).

Almost surely, 2^{211120111021011} is an apocalyptic number.

211120111021011 is a deficient number, since it is larger than the sum of its proper divisors (70373438079933).

211120111021011 is an equidigital number, since it uses as much as digits as its factorization.

211120111021011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16934901.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 211120111021011 its reverse (110120111021112), we get a palindrome (321240222042123).

The spelling of 211120111021011 in words is "two hundred eleven trillion, one hundred twenty billion, one hundred eleven million, twenty-one thousand, eleven".