1422152232121 has 2 divisors, whose sum is σ = 1422152232122. Its totient is φ = 1422152232120.

The previous prime is 1422152232119. The next prime is 1422152232133. The reversal of 1422152232121 is 1212322512241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1383023040400 + 39129191721 = 1176020^2 + 197811^2 .

It is a cyclic number.

It is not a de Polignac number, because 1422152232121 - 2¹ = 1422152232119 is a prime.

Together with 1422152232119, 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 1422152232121.

It is not a weakly prime, because it can be changed into another prime (1422152232421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711076116060 + 711076116061.

It is an arithmetic number, because the mean of its divisors is an integer number (711076116061).

Almost surely, 2^{1422152232121} is an apocalyptic number.

It is an amenable number.

1422152232121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1422152232121 is an equidigital number, since it uses as much as digits as its factorization.

1422152232121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3840, while the sum is 28.

Adding to 1422152232121 its reverse (1212322512241), we get a palindrome (2634474744362).

The spelling of 1422152232121 in words is "one trillion, four hundred twenty-two billion, one hundred fifty-two million, two hundred thirty-two thousand, one hundred twenty-one".