1228214425787 has 2 divisors, whose sum is σ = 1228214425788. Its totient is φ = 1228214425786.

The previous prime is 1228214425777. The next prime is 1228214425891. The reversal of 1228214425787 is 7875244128221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1228214425787 - 2⁴ = 1228214425771 is a prime.

It is a super-2 number, since 2×1228214425787² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1228214425727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614107212893 + 614107212894.

It is an arithmetic number, because the mean of its divisors is an integer number (614107212894).

Almost surely, 2^{1228214425787} is an apocalyptic number.

1228214425787 is a deficient number, since it is larger than the sum of its proper divisors (1).

1228214425787 is an equidigital number, since it uses as much as digits as its factorization.

1228214425787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4014080, while the sum is 53.

The spelling of 1228214425787 in words is "one trillion, two hundred twenty-eight billion, two hundred fourteen million, four hundred twenty-five thousand, seven hundred eighty-seven".