112100121202021 has 2 divisors, whose sum is σ = 112100121202022. Its totient is φ = 112100121202020.

The previous prime is 112100121202001. The next prime is 112100121202067. The reversal of 112100121202021 is 120202121001211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102371617108996 + 9728504093025 = 10117886^2 + 3119055^2 .

It is a cyclic number.

It is not a de Polignac number, because 112100121202021 - 2²⁹ = 112099584331109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112100121201986 and 112100121202004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112100121202001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56050060601010 + 56050060601011.

It is an arithmetic number, because the mean of its divisors is an integer number (56050060601011).

Almost surely, 2^{112100121202021} is an apocalyptic number.

It is an amenable number.

112100121202021 is a deficient number, since it is larger than the sum of its proper divisors (1).

112100121202021 is an equidigital number, since it uses as much as digits as its factorization.

112100121202021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 112100121202021 its reverse (120202121001211), we get a palindrome (232302242203232).

The spelling of 112100121202021 in words is "one hundred twelve trillion, one hundred billion, one hundred twenty-one million, two hundred two thousand, twenty-one".