112111201021 has 8 divisors (see below), whose sum is σ = 113656930040. Its totient is φ = 110565741312.

The previous prime is 112111200979. The next prime is 112111201039. The reversal of 112111201021 is 120102111211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1252168996 + 110859032025 = 35386^2 + 332955^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 112111201021 - 2²³ = 112102812413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112111200992 and 112111201010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112111201921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 858001 + ... + 979993.

It is an arithmetic number, because the mean of its divisors is an integer number (14207116255).

Almost surely, 2^112111201021 is an apocalyptic number.

It is an amenable number.

112111201021 is a deficient number, since it is larger than the sum of its proper divisors (1545729019).

112111201021 is a wasteful number, since it uses less digits than its factorization.

112111201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134655.

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

Adding to 112111201021 its reverse (120102111211), we get a palindrome (232213312232).

It can be divided in two parts, 11211 and 1201021, that multiplied together give a palindrome (13464646431).

The spelling of 112111201021 in words is "one hundred twelve billion, one hundred eleven million, two hundred one thousand, twenty-one".