111012112102101 has 32 divisors (see below), whose sum is σ = 169453719859200. Its totient is φ = 63325845717696.

The previous prime is 111012112102061. The next prime is 111012112102109. The reversal of 111012112102101 is 101201211210111.

It is not a de Polignac number, because 111012112102101 - 2⁶ = 111012112102037 is a prime.

It is a super-2 number, since 2×111012112102101² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111012112102109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 643839300 + ... + 644011698.

It is an arithmetic number, because the mean of its divisors is an integer number (5295428745600).

Almost surely, 2^{111012112102101} is an apocalyptic number.

It is an amenable number.

111012112102101 is a deficient number, since it is larger than the sum of its proper divisors (58441607757099).

111012112102101 is a wasteful number, since it uses less digits than its factorization.

111012112102101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225233.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 111012112102101 its reverse (101201211210111), we get a palindrome (212213323312212).

The spelling of 111012112102101 in words is "one hundred eleven trillion, twelve billion, one hundred twelve million, one hundred two thousand, one hundred one".