111201012110021 has 8 divisors (see below), whose sum is σ = 113086245104640. Its totient is φ = 109315794784768.

The previous prime is 111201012109963. The next prime is 111201012110029. The reversal of 111201012110021 is 120011210102111.

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 111201012110021 - 2¹⁴ = 111201012093637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111201012109978 and 111201012110005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111201012110029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10865285 + ... + 18451461.

It is an arithmetic number, because the mean of its divisors is an integer number (14135780638080).

Almost surely, 2^{111201012110021} is an apocalyptic number.

It is an amenable number.

111201012110021 is a deficient number, since it is larger than the sum of its proper divisors (1885232994619).

111201012110021 is an equidigital number, since it uses as much as digits as its factorization.

111201012110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7834683.

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

Adding to 111201012110021 its reverse (120011210102111), we get a palindrome (231212222212132).

The spelling of 111201012110021 in words is "one hundred eleven trillion, two hundred one billion, twelve million, one hundred ten thousand, twenty-one".