1001055600021 has 8 divisors (see below), whose sum is σ = 1336537224000. Its totient is φ = 666472188032.

The previous prime is 1001055600007. The next prime is 1001055600031. The reversal of 1001055600021 is 1200065501001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1001055600021 - 2³⁴ = 983875730837 is a prime.

It is a super-2 number, since 2×1001055600021² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001055600031) 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 7 ways as a sum of consecutive naturals, for example, 224550396 + ... + 224554853.

It is an arithmetic number, because the mean of its divisors is an integer number (167067153000).

Almost surely, 2^{1001055600021} is an apocalyptic number.

It is an amenable number.

1001055600021 is a deficient number, since it is larger than the sum of its proper divisors (335481623979).

1001055600021 is an equidigital number, since it uses as much as digits as its factorization.

1001055600021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449105995.

The product of its (nonzero) digits is 300, while the sum is 21.

The spelling of 1001055600021 in words is "one trillion, one billion, fifty-five million, six hundred thousand, twenty-one".