112111020001021 has 4 divisors (see below), whose sum is σ = 118705785883452. Its totient is φ = 105516254118592.

The previous prime is 112111020001009. The next prime is 112111020001037. The reversal of 112111020001021 is 120100020111211.

It is a happy number.

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 86084809676100 + 26026210324921 = 9278190^2 + 5101589^2 .

It is a cyclic number.

It is not a de Polignac number, because 112111020001021 - 2²¹ = 112111017903869 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112111020000992 and 112111020001010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112111020001621) 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, 3297382941190 + ... + 3297382941223.

It is an arithmetic number, because the mean of its divisors is an integer number (29676446470863).

Almost surely, 2^{112111020001021} is an apocalyptic number.

It is an amenable number.

112111020001021 is a deficient number, since it is larger than the sum of its proper divisors (6594765882431).

112111020001021 is an equidigital number, since it uses as much as digits as its factorization.

112111020001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6594765882430.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 112111020001021 its reverse (120100020111211), we get a palindrome (232211040112232).

The spelling of 112111020001021 in words is "one hundred twelve trillion, one hundred eleven billion, twenty million, one thousand, twenty-one".