211211102111001 has 8 divisors (see below), whose sum is σ = 281649773019840. Its totient is φ = 140789916304752.

The previous prime is 211211102110969. The next prime is 211211102111047. The reversal of 211211102111001 is 100111201112112.

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

It is not a de Polignac number, because 211211102111001 - 2⁵ = 211211102110969 is a prime.

It is a super-2 number, since 2×211211102111001² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211211102011001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4371247461 + ... + 4371295778.

It is an arithmetic number, because the mean of its divisors is an integer number (35206221627480).

Almost surely, 2^{211211102111001} is an apocalyptic number.

It is an amenable number.

211211102111001 is a deficient number, since it is larger than the sum of its proper divisors (70438670908839).

211211102111001 is an equidigital number, since it uses as much as digits as its factorization.

211211102111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8742551295.

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

Adding to 211211102111001 its reverse (100111201112112), we get a palindrome (311322303223113).

The spelling of 211211102111001 in words is "two hundred eleven trillion, two hundred eleven billion, one hundred two million, one hundred eleven thousand, one".