211121000011 has 4 divisors (see below), whose sum is σ = 211124922624. Its totient is φ = 211117077400.

The previous prime is 211120999871. The next prime is 211121000021. The reversal of 211121000011 is 110000121112.

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 211121000011 - 2⁹ = 211120999499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211121000021) 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, 1879435 + ... + 1988596.

It is an arithmetic number, because the mean of its divisors is an integer number (52781230656).

Almost surely, 2^211121000011 is an apocalyptic number.

211121000011 is a deficient number, since it is larger than the sum of its proper divisors (3922613).

211121000011 is an equidigital number, since it uses as much as digits as its factorization.

211121000011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3922612.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 211121000011 its reverse (110000121112), we get a palindrome (321121121123).

The spelling of 211121000011 in words is "two hundred eleven billion, one hundred twenty-one million, eleven", and thus it is an aban number.