111012121101 has 8 divisors (see below), whose sum is σ = 169161327424. Its totient is φ = 63435497760.

The previous prime is 111012121037. The next prime is 111012121147. The reversal of 111012121101 is 101121210111.

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

It is not a de Polignac number, because 111012121101 - 2⁶ = 111012121037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111012121501) 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, 2643145720 + ... + 2643145761.

It is an arithmetic number, because the mean of its divisors is an integer number (21145165928).

Almost surely, 2^111012121101 is an apocalyptic number.

It is an amenable number.

111012121101 is a deficient number, since it is larger than the sum of its proper divisors (58149206323).

111012121101 is an equidigital number, since it uses as much as digits as its factorization.

111012121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5286291491.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 111012121101 its reverse (101121210111), we get a palindrome (212133331212).

The spelling of 111012121101 in words is "one hundred eleven billion, twelve million, one hundred twenty-one thousand, one hundred one".