211011110001 has 24 divisors (see below), whose sum is σ = 326641573440. Its totient is φ = 130921106976.

The previous prime is 211011109979. The next prime is 211011110003. The reversal of 211011110001 is 100011110112.

It is not a de Polignac number, because 211011110001 - 2¹⁹ = 211010585713 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (211011110003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13767711 + ... + 13783028.

It is an arithmetic number, because the mean of its divisors is an integer number (13610065560).

Almost surely, 2^211011110001 is an apocalyptic number.

It is an amenable number.

211011110001 is a deficient number, since it is larger than the sum of its proper divisors (115630463439).

211011110001 is a wasteful number, since it uses less digits than its factorization.

211011110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27550805 (or 27550802 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 211011110001 its reverse (100011110112), we get a palindrome (311022220113).

The spelling of 211011110001 in words is "two hundred eleven billion, eleven million, one hundred ten thousand, one".