2111021000007 has 4 divisors (see below), whose sum is σ = 2814694666680. Its totient is φ = 1407347333336.

The previous prime is 2111020999987. The next prime is 2111021000009. The reversal of 2111021000007 is 7000001201112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2111021000007 - 2¹¹ = 2111020997959 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2111021000007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111021000009) 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 3 ways as a sum of consecutive naturals, for example, 351836833332 + ... + 351836833337.

It is an arithmetic number, because the mean of its divisors is an integer number (703673666670).

Almost surely, 2^{2111021000007} is an apocalyptic number.

2111021000007 is a deficient number, since it is larger than the sum of its proper divisors (703673666673).

2111021000007 is an equidigital number, since it uses as much as digits as its factorization.

2111021000007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703673666672.

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

Adding to 2111021000007 its reverse (7000001201112), we get a palindrome (9111022201119).

The spelling of 2111021000007 in words is "two trillion, one hundred eleven billion, twenty-one million, seven", and thus it is an aban number.