12121001027 has 2 divisors, whose sum is σ = 12121001028. Its totient is φ = 12121001026.

The previous prime is 12121001017. The next prime is 12121001063. The reversal of 12121001027 is 72010012121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12121001027 - 2¹⁴ = 12120984643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12121000996 and 12121001014.

It is not a weakly prime, because it can be changed into another prime (12121001017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060500513 + 6060500514.

It is an arithmetic number, because the mean of its divisors is an integer number (6060500514).

Almost surely, 2^12121001027 is an apocalyptic number.

12121001027 is a deficient number, since it is larger than the sum of its proper divisors (1).

12121001027 is an equidigital number, since it uses as much as digits as its factorization.

12121001027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 17.

Adding to 12121001027 its reverse (72010012121), we get a palindrome (84131013148).

The spelling of 12121001027 in words is "twelve billion, one hundred twenty-one million, one thousand, twenty-seven".