210211111111101 has 16 divisors (see below), whose sum is σ = 283959779136000. Its totient is φ = 138313573339968.

The previous prime is 210211111111073. The next prime is 210211111111109. The reversal of 210211111111101 is 101111111112012.

It is a happy number.

It is not a de Polignac number, because 210211111111101 - 2¹⁷ = 210211110980029 is a prime.

It is a super-2 number, since 2×210211111111101² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210211111111109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1497607981 + ... + 1497748338.

It is an arithmetic number, because the mean of its divisors is an integer number (17747486196000).

Almost surely, 2^{210211111111101} is an apocalyptic number.

It is an amenable number.

210211111111101 is a deficient number, since it is larger than the sum of its proper divisors (73748668024899).

210211111111101 is a wasteful number, since it uses less digits than its factorization.

210211111111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2995356628.

The product of its (nonzero) digits is 4, while the sum is 15.

Adding to 210211111111101 its reverse (101111111112012), we get a palindrome (311322222223113).

The spelling of 210211111111101 in words is "two hundred ten trillion, two hundred eleven billion, one hundred eleven million, one hundred eleven thousand, one hundred one".