112120201021 has 8 divisors (see below), whose sum is σ = 112455899640. Its totient is φ = 111784992768.

The previous prime is 112120201019. The next prime is 112120201043. The reversal of 112120201021 is 120102021211.

It can be written as a sum of positive squares in 4 ways, for example, as 61150365796 + 50969835225 = 247286^2 + 225765^2 .

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 112120201021 - 2¹ = 112120201019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112120200992 and 112120201010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112120201001) 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, 337965 + ... + 581773.

It is an arithmetic number, because the mean of its divisors is an integer number (14056987455).

Almost surely, 2^112120201021 is an apocalyptic number.

It is an amenable number.

112120201021 is a deficient number, since it is larger than the sum of its proper divisors (335698619).

112120201021 is an equidigital number, since it uses as much as digits as its factorization.

112120201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245183.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 112120201021 its reverse (120102021211), we get a palindrome (232222222232).

The spelling of 112120201021 in words is "one hundred twelve billion, one hundred twenty million, two hundred one thousand, twenty-one".