20000221002007 has 2 divisors, whose sum is σ = 20000221002008. Its totient is φ = 20000221002006.

The previous prime is 20000221001987. The next prime is 20000221002011. The reversal of 20000221002007 is 70020012200002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20000221002007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20000221002607) 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, 10000110501003 + 10000110501004.

It is an arithmetic number, because the mean of its divisors is an integer number (10000110501004).

Almost surely, 2^{20000221002007} is an apocalyptic number.

20000221002007 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000221002007 is an equidigital number, since it uses as much as digits as its factorization.

20000221002007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 16.

Adding to 20000221002007 its reverse (70020012200002), we get a palindrome (90020233202009).

The spelling of 20000221002007 in words is "twenty trillion, two hundred twenty-one million, two thousand, seven".