2100001210007 has 2 divisors, whose sum is σ = 2100001210008. Its totient is φ = 2100001210006.

The previous prime is 2100001209953. The next prime is 2100001210009. The reversal of 2100001210007 is 7000121000012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2100001210007 - 2¹⁰ = 2100001208983 is a prime.

Together with 2100001210009, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2100001209973 and 2100001210000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100001210009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050000605003 + 1050000605004.

It is an arithmetic number, because the mean of its divisors is an integer number (1050000605004).

Almost surely, 2^{2100001210007} is an apocalyptic number.

2100001210007 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100001210007 is an equidigital number, since it uses as much as digits as its factorization.

2100001210007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 14.

Adding to 2100001210007 its reverse (7000121000012), we get a palindrome (9100122210019).

The spelling of 2100001210007 in words is "two trillion, one hundred billion, one million, two hundred ten thousand, seven".