2101207007 has 4 divisors (see below), whose sum is σ = 2101555200. Its totient is φ = 2100858816.

The previous prime is 2101206967. The next prime is 2101207013. The reversal of 2101207007 is 7007021012.

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 2101207007 - 2¹² = 2101202911 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2101207007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101207027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164882 + ... + 177167.

It is an arithmetic number, because the mean of its divisors is an integer number (525388800).

Almost surely, 2^2101207007 is an apocalyptic number.

2101207007 is a deficient number, since it is larger than the sum of its proper divisors (348193).

2101207007 is an equidigital number, since it uses as much as digits as its factorization.

2101207007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348192.

The product of its (nonzero) digits is 196, while the sum is 20.

The square root of 2101207007 is about 45838.9245838076. The cubic root of 2101207007 is about 1280.8244621270.

Adding to 2101207007 its reverse (7007021012), we get a palindrome (9108228019).

The spelling of 2101207007 in words is "two billion, one hundred one million, two hundred seven thousand, seven".