1112012102021 has 4 divisors (see below), whose sum is σ = 1112062375500. Its totient is φ = 1111961828544.

The previous prime is 1112012102017. The next prime is 1112012102059. The reversal of 1112012102021 is 1202012102111.

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 488566050625 + 623446051396 = 698975^2 + 789586^2 .

It is a cyclic number.

It is not a de Polignac number, because 1112012102021 - 2² = 1112012102017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1112012101987 and 1112012102005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112012102221) 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, 25103546 + ... + 25147803.

It is an arithmetic number, because the mean of its divisors is an integer number (278015593875).

Almost surely, 2^{1112012102021} is an apocalyptic number.

It is an amenable number.

1112012102021 is a deficient number, since it is larger than the sum of its proper divisors (50273479).

1112012102021 is an equidigital number, since it uses as much as digits as its factorization.

1112012102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50273478.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1112012102021 its reverse (1202012102111), we get a palindrome (2314024204132).

The spelling of 1112012102021 in words is "one trillion, one hundred twelve billion, twelve million, one hundred two thousand, twenty-one".