2427207121 has 2 divisors, whose sum is σ = 2427207122. Its totient is φ = 2427207120.

The previous prime is 2427207119. The next prime is 2427207131. The reversal of 2427207121 is 1217027242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2419164225 + 8042896 = 49185^2 + 2836^2 .

It is a cyclic number.

It is not a de Polignac number, because 2427207121 - 2¹ = 2427207119 is a prime.

Together with 2427207119, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2427207121.

It is not a weakly prime, because it can be changed into another prime (2427207131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1213603560 + 1213603561.

It is an arithmetic number, because the mean of its divisors is an integer number (1213603561).

Almost surely, 2^2427207121 is an apocalyptic number.

It is an amenable number.

2427207121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2427207121 is an equidigital number, since it uses as much as digits as its factorization.

2427207121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 2427207121 is about 49266.6938306195. The cubic root of 2427207121 is about 1343.9061639138.

The spelling of 2427207121 in words is "two billion, four hundred twenty-seven million, two hundred seven thousand, one hundred twenty-one".