111021101110001 has 4 divisors (see below), whose sum is σ = 115848105506112. Its totient is φ = 106194096713892.

The previous prime is 111021101109979. The next prime is 111021101110013. The reversal of 111021101110001 is 100011101120111.

It is a happy number.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111021101110001 is a prime.

It is a super-3 number, since 3×111021101110001³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111021101112001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2413502198021 + ... + 2413502198066.

It is an arithmetic number, because the mean of its divisors is an integer number (28962026376528).

Almost surely, 2^{111021101110001} is an apocalyptic number.

It is an amenable number.

111021101110001 is a deficient number, since it is larger than the sum of its proper divisors (4827004396111).

111021101110001 is an equidigital number, since it uses as much as digits as its factorization.

111021101110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4827004396110.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 111021101110001 its reverse (100011101120111), we get a palindrome (211032202230112).

The spelling of 111021101110001 in words is "one hundred eleven trillion, twenty-one billion, one hundred one million, one hundred ten thousand, one".