127106755021 has 32 divisors (see below), whose sum is σ = 135436105728. Its totient is φ = 119147521920.

The previous prime is 127106754977. The next prime is 127106755051. The reversal of 127106755021 is 120557601721.

It is a cyclic number.

It is not a de Polignac number, because 127106755021 - 2⁷ = 127106754893 is a prime.

It is a super-2 number, since 2×127106755021² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127106755051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22978026 + ... + 22983556.

It is an arithmetic number, because the mean of its divisors is an integer number (4232378304).

Almost surely, 2^127106755021 is an apocalyptic number.

It is an amenable number.

127106755021 is a deficient number, since it is larger than the sum of its proper divisors (8329350707).

127106755021 is a wasteful number, since it uses less digits than its factorization.

127106755021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5841.

The product of its (nonzero) digits is 29400, while the sum is 37.

The spelling of 127106755021 in words is "one hundred twenty-seven billion, one hundred six million, seven hundred fifty-five thousand, twenty-one".