111012210101 has 8 divisors (see below), whose sum is σ = 119563220280. Its totient is φ = 102462858432.

The previous prime is 111012210079. The next prime is 111012210103. The reversal of 111012210101 is 101012210111.

It can be written as a sum of positive squares in 4 ways, for example, as 34726322500 + 76285887601 = 186350^2 + 276199^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111012210101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111012210103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273830 + ... + 544983.

It is an arithmetic number, because the mean of its divisors is an integer number (14945402535).

Almost surely, 2^111012210101 is an apocalyptic number.

It is an amenable number.

111012210101 is a deficient number, since it is larger than the sum of its proper divisors (8551010179).

111012210101 is a wasteful number, since it uses less digits than its factorization.

111012210101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829255.

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

Adding to 111012210101 its reverse (101012210111), we get a palindrome (212024420212).

The spelling of 111012210101 in words is "one hundred eleven billion, twelve million, two hundred ten thousand, one hundred one".