201122110211023 has 4 divisors (see below), whose sum is σ = 203877207611248. Its totient is φ = 198367012810800.

The previous prime is 201122110210907. The next prime is 201122110211041. The reversal of 201122110211023 is 320112011221102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201122110211023 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 (201122110211083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1377548700003 + ... + 1377548700148.

It is an arithmetic number, because the mean of its divisors is an integer number (50969301902812).

Almost surely, 2^{201122110211023} is an apocalyptic number.

201122110211023 is a deficient number, since it is larger than the sum of its proper divisors (2755097400225).

201122110211023 is an equidigital number, since it uses as much as digits as its factorization.

201122110211023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2755097400224.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 201122110211023 its reverse (320112011221102), we get a palindrome (521234121432125).

The spelling of 201122110211023 in words is "two hundred one trillion, one hundred twenty-two billion, one hundred ten million, two hundred eleven thousand, twenty-three".