121021101201071 has 2 divisors, whose sum is σ = 121021101201072. Its totient is φ = 121021101201070.

The previous prime is 121021101200957. The next prime is 121021101201073. The reversal of 121021101201071 is 170102101120121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121021101201071 - 2¹⁰ = 121021101200047 is a prime.

It is a super-2 number, since 2×121021101201071² (a number of 29 digits) contains 22 as substring.

Together with 121021101201073, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121021101201073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60510550600535 + 60510550600536.

It is an arithmetic number, because the mean of its divisors is an integer number (60510550600536).

Almost surely, 2^{121021101201071} is an apocalyptic number.

121021101201071 is a deficient number, since it is larger than the sum of its proper divisors (1).

121021101201071 is an equidigital number, since it uses as much as digits as its factorization.

121021101201071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 20.

Adding to 121021101201071 its reverse (170102101120121), we get a palindrome (291123202321192).

The spelling of 121021101201071 in words is "one hundred twenty-one trillion, twenty-one billion, one hundred one million, two hundred one thousand, seventy-one".