111210010121 has 8 divisors (see below), whose sum is σ = 127104525120. Its totient is φ = 95317337808.

The previous prime is 111210010097. The next prime is 111210010139. The reversal of 111210010121 is 121010012111.

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

It is not a de Polignac number, because 111210010121 - 2²² = 111205815817 is a prime.

It is a super-2 number, since 2×111210010121² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111210010621) 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, 328826 + ... + 574931.

It is an arithmetic number, because the mean of its divisors is an integer number (15888065640).

Almost surely, 2^111210010121 is an apocalyptic number.

It is an amenable number.

111210010121 is a deficient number, since it is larger than the sum of its proper divisors (15894514999).

111210010121 is an equidigital number, since it uses as much as digits as its factorization.

111210010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921343.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 111210010121 its reverse (121010012111), we get a palindrome (232220022232).

The spelling of 111210010121 in words is "one hundred eleven billion, two hundred ten million, ten thousand, one hundred twenty-one".