20015120211007 has 2 divisors, whose sum is σ = 20015120211008. Its totient is φ = 20015120211006.

The previous prime is 20015120211001. The next prime is 20015120211059. The reversal of 20015120211007 is 70011202151002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20015120211007 - 2¹⁵ = 20015120178239 is a prime.

It is a super-2 number, since 2×20015120211007² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20015120211001) 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 as a sum of consecutive naturals, namely, 10007560105503 + 10007560105504.

It is an arithmetic number, because the mean of its divisors is an integer number (10007560105504).

Almost surely, 2^{20015120211007} is an apocalyptic number.

20015120211007 is a deficient number, since it is larger than the sum of its proper divisors (1).

20015120211007 is an equidigital number, since it uses as much as digits as its factorization.

20015120211007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 22.

Adding to 20015120211007 its reverse (70011202151002), we get a palindrome (90026322362009).

The spelling of 20015120211007 in words is "twenty trillion, fifteen billion, one hundred twenty million, two hundred eleven thousand, seven".