121012021027 has 2 divisors, whose sum is σ = 121012021028. Its totient is φ = 121012021026.

The previous prime is 121012021007. The next prime is 121012021051. The reversal of 121012021027 is 720120210121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121012021027 - 2³⁵ = 86652282659 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121012020995 and 121012021013.

It is not a weakly prime, because it can be changed into another prime (121012021007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60506010513 + 60506010514.

It is an arithmetic number, because the mean of its divisors is an integer number (60506010514).

Almost surely, 2^121012021027 is an apocalyptic number.

121012021027 is a deficient number, since it is larger than the sum of its proper divisors (1).

121012021027 is an equidigital number, since it uses as much as digits as its factorization.

121012021027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 121012021027 its reverse (720120210121), we get a palindrome (841132231148).

The spelling of 121012021027 in words is "one hundred twenty-one billion, twelve million, twenty-one thousand, twenty-seven".