211000111010001 has 24 divisors (see below), whose sum is σ = 323112443573504. Its totient is φ = 132449938901280.

The previous prime is 211000111009969. The next prime is 211000111010047. The reversal of 211000111010001 is 100010111000112.

It is not a de Polignac number, because 211000111010001 - 2⁵ = 211000111009969 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211000111010081) 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, 10219892371 + ... + 10219913016.

Almost surely, 2^{211000111010001} is an apocalyptic number.

It is an amenable number.

211000111010001 is a deficient number, since it is larger than the sum of its proper divisors (112112332563503).

211000111010001 is a wasteful number, since it uses less digits than its factorization.

211000111010001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20439805461 (or 20439805458 counting only the distinct ones).

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

Adding to 211000111010001 its reverse (100010111000112), we get a palindrome (311010222010113).

The spelling of 211000111010001 in words is "two hundred eleven trillion, one hundred eleven million, ten thousand, one".