111020211001 has 8 divisors (see below), whose sum is σ = 127162828800. Its totient is φ = 94948240128.

The previous prime is 111020210971. The next prime is 111020211013. The reversal of 111020211001 is 100112020111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-111020211001 is a prime.

It is a super-2 number, since 2×111020211001² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111020211041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17658361 + ... + 17664646.

It is an arithmetic number, because the mean of its divisors is an integer number (15895353600).

Almost surely, 2^111020211001 is an apocalyptic number.

It is an amenable number.

111020211001 is a deficient number, since it is larger than the sum of its proper divisors (16142617799).

111020211001 is an equidigital number, since it uses as much as digits as its factorization.

111020211001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35323463.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 111020211001 its reverse (100112020111), we get a palindrome (211132231112).

The spelling of 111020211001 in words is "one hundred eleven billion, twenty million, two hundred eleven thousand, one".