111210211120001 has 4 divisors (see below), whose sum is σ = 127097384137152. Its totient is φ = 95323038102852.

The previous prime is 111210211119967. The next prime is 111210211120013. The reversal of 111210211120001 is 100021112012111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 111210211120001 - 2¹⁰ = 111210211118977 is a prime.

It is a super-2 number, since 2×111210211120001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111210211120601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7943586508565 + ... + 7943586508578.

It is an arithmetic number, because the mean of its divisors is an integer number (31774346034288).

Almost surely, 2^{111210211120001} is an apocalyptic number.

It is an amenable number.

111210211120001 is a deficient number, since it is larger than the sum of its proper divisors (15887173017151).

111210211120001 is an equidigital number, since it uses as much as digits as its factorization.

111210211120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15887173017150.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111210211120001 its reverse (100021112012111), we get a palindrome (211231323132112).

The spelling of 111210211120001 in words is "one hundred eleven trillion, two hundred ten billion, two hundred eleven million, one hundred twenty thousand, one".