111210121101001 has 16 divisors (see below), whose sum is σ = 124620723085824. Its totient is φ = 98575651272384.

The previous prime is 111210121100999. The next prime is 111210121101017. The reversal of 111210121101001 is 100101121012111.

It is not a de Polignac number, because 111210121101001 - 2¹ = 111210121100999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111210121101061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1717074141 + ... + 1717138906.

It is an arithmetic number, because the mean of its divisors is an integer number (7788795192864).

Almost surely, 2^{111210121101001} is an apocalyptic number.

It is an amenable number.

111210121101001 is a deficient number, since it is larger than the sum of its proper divisors (13410601984823).

111210121101001 is a wasteful number, since it uses less digits than its factorization.

111210121101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3434213160.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 111210121101001 its reverse (100101121012111), we get a palindrome (211311242113112).

The spelling of 111210121101001 in words is "one hundred eleven trillion, two hundred ten billion, one hundred twenty-one million, one hundred one thousand, one".