2121201000007 has 2 divisors, whose sum is σ = 2121201000008. Its totient is φ = 2121201000006.

The previous prime is 2121200999971. The next prime is 2121201000019. The reversal of 2121201000007 is 7000001021212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2121201000007 - 2²⁷ = 2121066782279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121201000047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060600500003 + 1060600500004.

It is an arithmetic number, because the mean of its divisors is an integer number (1060600500004).

Almost surely, 2^{2121201000007} is an apocalyptic number.

2121201000007 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121201000007 is an equidigital number, since it uses as much as digits as its factorization.

2121201000007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 16.

Adding to 2121201000007 its reverse (7000001021212), we get a palindrome (9121202021219).

The spelling of 2121201000007 in words is "two trillion, one hundred twenty-one billion, two hundred one million, seven", and thus it is an aban number.