112001011021 has 4 divisors (see below), whose sum is σ = 112688133952. Its totient is φ = 111313888092.

The previous prime is 112001011013. The next prime is 112001011033. The reversal of 112001011021 is 120110100211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 120110100211 = 1187 ⋅101187953.

It is a cyclic number.

It is not a de Polignac number, because 112001011021 - 2³ = 112001011013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112001010989 and 112001011007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112001011081) 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, 343561221 + ... + 343561546.

It is an arithmetic number, because the mean of its divisors is an integer number (28172033488).

Almost surely, 2^112001011021 is an apocalyptic number.

It is an amenable number.

112001011021 is a deficient number, since it is larger than the sum of its proper divisors (687122931).

112001011021 is an equidigital number, since it uses as much as digits as its factorization.

112001011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687122930.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 112001011021 its reverse (120110100211), we get a palindrome (232111111232).

The spelling of 112001011021 in words is "one hundred twelve billion, one million, eleven thousand, twenty-one".