211120110101 has 4 divisors (see below), whose sum is σ = 211225830732. Its totient is φ = 211014389472.

The previous prime is 211120110053. The next prime is 211120110161. The reversal of 211120110101 is 101011021112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 61350336100 + 149769774001 = 247690^2 + 387001^2 .

It is a cyclic number.

It is not a de Polignac number, because 211120110101 - 2¹⁸ = 211119847957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211120110161) 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, 52857320 + ... + 52861313.

It is an arithmetic number, because the mean of its divisors is an integer number (52806457683).

Almost surely, 2^211120110101 is an apocalyptic number.

It is an amenable number.

211120110101 is a deficient number, since it is larger than the sum of its proper divisors (105720631).

211120110101 is a wasteful number, since it uses less digits than its factorization.

211120110101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105720630.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 211120110101 its reverse (101011021112), we get a palindrome (312131131213).

The spelling of 211120110101 in words is "two hundred eleven billion, one hundred twenty million, one hundred ten thousand, one hundred one".