1222401254387 has 2 divisors, whose sum is σ = 1222401254388. Its totient is φ = 1222401254386.

The previous prime is 1222401254317. The next prime is 1222401254401. The reversal of 1222401254387 is 7834521042221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222401254387 is a prime.

It is a super-2 number, since 2×1222401254387² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1222401254317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611200627193 + 611200627194.

It is an arithmetic number, because the mean of its divisors is an integer number (611200627194).

Almost surely, 2^{1222401254387} is an apocalyptic number.

1222401254387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222401254387 is an equidigital number, since it uses as much as digits as its factorization.

1222401254387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 215040, while the sum is 41.

The spelling of 1222401254387 in words is "one trillion, two hundred twenty-two billion, four hundred one million, two hundred fifty-four thousand, three hundred eighty-seven".