1212401417 has 2 divisors, whose sum is σ = 1212401418. Its totient is φ = 1212401416.

The previous prime is 1212401401. The next prime is 1212401423. The reversal of 1212401417 is 7141042121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 787588096 + 424813321 = 28064^2 + 20611^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212401417 - 2⁴ = 1212401401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1212401392 and 1212401401.

It is not a weakly prime, because it can be changed into another prime (1212401497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606200708 + 606200709.

It is an arithmetic number, because the mean of its divisors is an integer number (606200709).

Almost surely, 2^1212401417 is an apocalyptic number.

It is an amenable number.

1212401417 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212401417 is an equidigital number, since it uses as much as digits as its factorization.

1212401417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 1212401417 is about 34819.5550948027. Note that the first 3 decimals coincide. The cubic root of 1212401417 is about 1066.3067172957.

Adding to 1212401417 its reverse (7141042121), we get a palindrome (8353443538).

The spelling of 1212401417 in words is "one billion, two hundred twelve million, four hundred one thousand, four hundred seventeen".