127227520051621 has 16 divisors (see below), whose sum is σ = 146288696405760. Its totient is φ = 109566019501120.

The previous prime is 127227520051591. The next prime is 127227520051711. The reversal of 127227520051621 is 126150025722721.

It is a cyclic number.

It is not a de Polignac number, because 127227520051621 - 2⁵ = 127227520051589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127227520081621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3762552445 + ... + 3762586258.

It is an arithmetic number, because the mean of its divisors is an integer number (9143043525360).

Almost surely, 2^{127227520051621} is an apocalyptic number.

127227520051621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

127227520051621 is a deficient number, since it is larger than the sum of its proper divisors (19061176354139).

127227520051621 is a wasteful number, since it uses less digits than its factorization.

127227520051621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7525138796.

The product of its (nonzero) digits is 235200, while the sum is 43.

The spelling of 127227520051621 in words is "one hundred twenty-seven trillion, two hundred twenty-seven billion, five hundred twenty million, fifty-one thousand, six hundred twenty-one".