12020101121081 has 2 divisors, whose sum is σ = 12020101121082. Its totient is φ = 12020101121080.

The previous prime is 12020101121047. The next prime is 12020101121087. The reversal of 12020101121081 is 18012110102021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11242910772025 + 777190349056 = 3353045^2 + 881584^2 .

It is a cyclic number.

It is not a de Polignac number, because 12020101121081 - 2¹⁰ = 12020101120057 is a prime.

It is a super-2 number, since 2×12020101121081² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12020101121087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010050560540 + 6010050560541.

It is an arithmetic number, because the mean of its divisors is an integer number (6010050560541).

Almost surely, 2^{12020101121081} is an apocalyptic number.

It is an amenable number.

12020101121081 is a deficient number, since it is larger than the sum of its proper divisors (1).

12020101121081 is an equidigital number, since it uses as much as digits as its factorization.

12020101121081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 20.

The spelling of 12020101121081 in words is "twelve trillion, twenty billion, one hundred one million, one hundred twenty-one thousand, eighty-one".