112012100211521 has 2 divisors, whose sum is σ = 112012100211522. Its totient is φ = 112012100211520.

The previous prime is 112012100211499. The next prime is 112012100211553. The reversal of 112012100211521 is 125112001210211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87906356953921 + 24105743257600 = 9375839^2 + 4909760^2 .

It is a cyclic number.

It is not a de Polignac number, because 112012100211521 - 2²⁶ = 112012033102657 is a prime.

It is a super-2 number, since 2×112012100211521² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 112012100211493 and 112012100211502.

It is not a weakly prime, because it can be changed into another prime (112012100271521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56006050105760 + 56006050105761.

It is an arithmetic number, because the mean of its divisors is an integer number (56006050105761).

Almost surely, 2^{112012100211521} is an apocalyptic number.

It is an amenable number.

112012100211521 is a deficient number, since it is larger than the sum of its proper divisors (1).

112012100211521 is an equidigital number, since it uses as much as digits as its factorization.

112012100211521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 20.

Adding to 112012100211521 its reverse (125112001210211), we get a palindrome (237124101421732).

The spelling of 112012100211521 in words is "one hundred twelve trillion, twelve billion, one hundred million, two hundred eleven thousand, five hundred twenty-one".