1212624042137 has 2 divisors, whose sum is σ = 1212624042138. Its totient is φ = 1212624042136.

The previous prime is 1212624042127. The next prime is 1212624042193. The reversal of 1212624042137 is 7312404262121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 925605623056 + 287018419081 = 962084^2 + 535741^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212624042137 - 2⁴ = 1212624042121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1212624042097 and 1212624042106.

It is not a weakly prime, because it can be changed into another prime (1212624042127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606312021068 + 606312021069.

It is an arithmetic number, because the mean of its divisors is an integer number (606312021069).

Almost surely, 2^{1212624042137} is an apocalyptic number.

It is an amenable number.

1212624042137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212624042137 is an equidigital number, since it uses as much as digits as its factorization.

1212624042137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 35.

The spelling of 1212624042137 in words is "one trillion, two hundred twelve billion, six hundred twenty-four million, forty-two thousand, one hundred thirty-seven".