127212902051 has 2 divisors, whose sum is σ = 127212902052. Its totient is φ = 127212902050.

The previous prime is 127212902041. The next prime is 127212902099. The reversal of 127212902051 is 150209212721.

It is a weak prime.

It is an emirp because it is prime and its reverse (150209212721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 127212902051 - 2¹⁸ = 127212639907 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 127212901999 and 127212902017.

It is not a weakly prime, because it can be changed into another prime (127212902041) 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, 63606451025 + 63606451026.

It is an arithmetic number, because the mean of its divisors is an integer number (63606451026).

Almost surely, 2^127212902051 is an apocalyptic number.

127212902051 is a deficient number, since it is larger than the sum of its proper divisors (1).

127212902051 is an equidigital number, since it uses as much as digits as its factorization.

127212902051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 32.

The spelling of 127212902051 in words is "one hundred twenty-seven billion, two hundred twelve million, nine hundred two thousand, fifty-one".