1000002121007 has 2 divisors, whose sum is σ = 1000002121008. Its totient is φ = 1000002121006.

The previous prime is 1000002120983. The next prime is 1000002121073. The reversal of 1000002121007 is 7001212000001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1000002121007 - 2¹⁰ = 1000002119983 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1000002120982 and 1000002121000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000002151007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500001060503 + 500001060504.

It is an arithmetic number, because the mean of its divisors is an integer number (500001060504).

Almost surely, 2^{1000002121007} is an apocalyptic number.

1000002121007 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000002121007 is an equidigital number, since it uses as much as digits as its factorization.

1000002121007 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 1000002121007 its reverse (7001212000001), we get a palindrome (8001214121008).

The spelling of 1000002121007 in words is "one trillion, two million, one hundred twenty-one thousand, seven".