1021000012107 has 8 divisors (see below), whose sum is σ = 1361356055760. Its totient is φ = 680655321600.

The previous prime is 1021000012099. The next prime is 1021000012141. The reversal of 1021000012107 is 7012100001201.

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

It is not a de Polignac number, because 1021000012107 - 2³ = 1021000012099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021000012157) 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 in 7 ways as a sum of consecutive naturals, for example, 2626182 + ... + 2989787.

It is an arithmetic number, because the mean of its divisors is an integer number (170169506970).

Almost surely, 2^{1021000012107} is an apocalyptic number.

1021000012107 is a deficient number, since it is larger than the sum of its proper divisors (340356043653).

1021000012107 is an equidigital number, since it uses as much as digits as its factorization.

1021000012107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5676573.

The product of its (nonzero) digits is 28, while the sum is 15.

Adding to 1021000012107 its reverse (7012100001201), we get a palindrome (8033100013308).

The spelling of 1021000012107 in words is "one trillion, twenty-one billion, twelve thousand, one hundred seven".