111120020211001 has 16 divisors (see below), whose sum is σ = 112592818151424. Its totient is φ = 109656741648384.

The previous prime is 111120020210999. The next prime is 111120020211181. The reversal of 111120020211001 is 100112020021111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 111120020211001 - 2¹ = 111120020210999 is a prime.

It is a super-2 number, since 2×111120020211001² (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 (111120020211901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158309520 + ... + 159009886.

It is an arithmetic number, because the mean of its divisors is an integer number (7037051134464).

Almost surely, 2^{111120020211001} is an apocalyptic number.

It is an amenable number.

111120020211001 is a deficient number, since it is larger than the sum of its proper divisors (1472797940423).

111120020211001 is a wasteful number, since it uses less digits than its factorization.

111120020211001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707160.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111120020211001 its reverse (100112020021111), we get a palindrome (211232040232112).

The spelling of 111120020211001 in words is "one hundred eleven trillion, one hundred twenty billion, twenty million, two hundred eleven thousand, one".