111112012202101 has 4 divisors (see below), whose sum is σ = 113208465262572. Its totient is φ = 109015559141632.

The previous prime is 111112012202057. The next prime is 111112012202159. The reversal of 111112012202101 is 101202210211111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40837339968100 + 70274672234001 = 6390410^2 + 8382999^2 .

It is a cyclic number.

It is not a de Polignac number, because 111112012202101 - 2⁷ = 111112012201973 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 (111112012205101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1048226530156 + ... + 1048226530261.

It is an arithmetic number, because the mean of its divisors is an integer number (28302116315643).

Almost surely, 2^{111112012202101} is an apocalyptic number.

It is an amenable number.

111112012202101 is a deficient number, since it is larger than the sum of its proper divisors (2096453060471).

111112012202101 is an equidigital number, since it uses as much as digits as its factorization.

111112012202101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2096453060470.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 111112012202101 its reverse (101202210211111), we get a palindrome (212314222413212).

The spelling of 111112012202101 in words is "one hundred eleven trillion, one hundred twelve billion, twelve million, two hundred two thousand, one hundred one".