211110122120001 has 32 divisors (see below), whose sum is σ = 307212059290752. Its totient is φ = 128176996346880.

The previous prime is 211110122119973. The next prime is 211110122120099. The reversal of 211110122120001 is 100021221011112.

It is a happy number.

It is not a de Polignac number, because 211110122120001 - 2¹⁸ = 211110121857857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211110122121001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 118541640 + ... + 120309353.

It is an arithmetic number, because the mean of its divisors is an integer number (9600376852836).

Almost surely, 2^{211110122120001} is an apocalyptic number.

It is an amenable number.

211110122120001 is a deficient number, since it is larger than the sum of its proper divisors (96101937170751).

211110122120001 is a wasteful number, since it uses less digits than its factorization.

211110122120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238851313.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 211110122120001 its reverse (100021221011112), we get a palindrome (311131343131113).

The spelling of 211110122120001 in words is "two hundred eleven trillion, one hundred ten billion, one hundred twenty-two million, one hundred twenty thousand, one".