1212442130401 has 2 divisors, whose sum is σ = 1212442130402. Its totient is φ = 1212442130400.

The previous prime is 1212442130351. The next prime is 1212442130407. The reversal of 1212442130401 is 1040312442121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1038656531025 + 173785599376 = 1019145^2 + 416876^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212442130401 is a prime.

It is not a weakly prime, because it can be changed into another prime (1212442130407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606221065200 + 606221065201.

It is an arithmetic number, because the mean of its divisors is an integer number (606221065201).

Almost surely, 2^{1212442130401} is an apocalyptic number.

It is an amenable number.

1212442130401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212442130401 is an equidigital number, since it uses as much as digits as its factorization.

1212442130401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 1212442130401 its reverse (1040312442121), we get a palindrome (2252754572522).

The spelling of 1212442130401 in words is "one trillion, two hundred twelve billion, four hundred forty-two million, one hundred thirty thousand, four hundred one".