211120102011 has 32 divisors (see below), whose sum is σ = 355817125888. Its totient is φ = 108350317440.

The previous prime is 211120102007. The next prime is 211120102013. The reversal of 211120102011 is 110201021112.

It is not a de Polignac number, because 211120102011 - 2² = 211120102007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211120102013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10440355 + ... + 10460556.

It is an arithmetic number, because the mean of its divisors is an integer number (11119285184).

Almost surely, 2^211120102011 is an apocalyptic number.

211120102011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

211120102011 is a deficient number, since it is larger than the sum of its proper divisors (144697023877).

211120102011 is a wasteful number, since it uses less digits than its factorization.

211120102011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20900971.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 211120102011 its reverse (110201021112), we get a palindrome (321321123123).

The spelling of 211120102011 in words is "two hundred eleven billion, one hundred twenty million, one hundred two thousand, eleven".