112012110100021 has 2 divisors, whose sum is σ = 112012110100022. Its totient is φ = 112012110100020.

The previous prime is 112012110100003. The next prime is 112012110100039. The reversal of 112012110100021 is 120001011210211.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (112012110100003) and next prime (112012110100039).

It can be written as a sum of positive squares in only one way, i.e., 98232876562500 + 13779233537521 = 9911250^2 + 3712039^2 .

It is a cyclic number.

It is not a de Polignac number, because 112012110100021 - 2¹¹ = 112012110097973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112012110099974 and 112012110100010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112012110100081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56006055050010 + 56006055050011.

It is an arithmetic number, because the mean of its divisors is an integer number (56006055050011).

Almost surely, 2^{112012110100021} is an apocalyptic number.

It is an amenable number.

112012110100021 is a deficient number, since it is larger than the sum of its proper divisors (1).

112012110100021 is an equidigital number, since it uses as much as digits as its factorization.

112012110100021 is an evil number, because the sum of its binary digits is even.

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

Adding to 112012110100021 its reverse (120001011210211), we get a palindrome (232013121310232).

The spelling of 112012110100021 in words is "one hundred twelve trillion, twelve billion, one hundred ten million, one hundred thousand, twenty-one".