111111020120201 has 8 divisors (see below), whose sum is σ = 118116978139200. Its totient is φ = 104220863060400.

The previous prime is 111111020120189. The next prime is 111111020120203. The reversal of 111111020120201 is 102021020111111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111111020120201 is a prime.

It is a super-2 number, since 2×111111020120201² (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 (111111020120203) 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, 28950237821 + ... + 28950241658.

It is an arithmetic number, because the mean of its divisors is an integer number (14764622267400).

Almost surely, 2^{111111020120201} is an apocalyptic number.

It is an amenable number.

111111020120201 is a deficient number, since it is larger than the sum of its proper divisors (7005958018999).

111111020120201 is a wasteful number, since it uses less digits than its factorization.

111111020120201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57900479599.

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

Adding to 111111020120201 its reverse (102021020111111), we get a palindrome (213132040231312).

The spelling of 111111020120201 in words is "one hundred eleven trillion, one hundred eleven billion, twenty million, one hundred twenty thousand, two hundred one".