21127055572612 has 24 divisors (see below), whose sum is σ = 40382122959360. Its totient is φ = 9591622976160.

The previous prime is 21127055572543. The next prime is 21127055572661. The reversal of 21127055572612 is 21627555072112.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289565668 + ... + 289638619.

It is an arithmetic number, because the mean of its divisors is an integer number (1682588456640).

Almost surely, 2^{21127055572612} is an apocalyptic number.

21127055572612 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21127055572612 is a deficient number, since it is larger than the sum of its proper divisors (19255067386748).

21127055572612 is a wasteful number, since it uses less digits than its factorization.

21127055572612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579205131 (or 579205129 counting only the distinct ones).

The product of its (nonzero) digits is 588000, while the sum is 46.

The spelling of 21127055572612 in words is "twenty-one trillion, one hundred twenty-seven billion, fifty-five million, five hundred seventy-two thousand, six hundred twelve".