111010110110021 has 8 divisors (see below), whose sum is σ = 111075750705600. Its totient is φ = 110944476498240.

The previous prime is 111010110110017. The next prime is 111010110110023. The reversal of 111010110110021 is 120011011010111.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 111010110110021 - 2² = 111010110110017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111010110109984 and 111010110110011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111010110110023) 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, 30227165 + ... + 33700173.

It is an arithmetic number, because the mean of its divisors is an integer number (13884468838200).

Almost surely, 2^{111010110110021} is an apocalyptic number.

It is an amenable number.

111010110110021 is a deficient number, since it is larger than the sum of its proper divisors (65640595579).

111010110110021 is a wasteful number, since it uses less digits than its factorization.

111010110110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3491899.

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

Adding to 111010110110021 its reverse (120011011010111), we get a palindrome (231021121120132).

The spelling of 111010110110021 in words is "one hundred eleven trillion, ten billion, one hundred ten million, one hundred ten thousand, twenty-one".