20021120020007 has 2 divisors, whose sum is σ = 20021120020008. Its totient is φ = 20021120020006.

The previous prime is 20021120019997. The next prime is 20021120020009. The reversal of 20021120020007 is 70002002112002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20021120020007 - 2¹⁴ = 20021120003623 is a prime.

Together with 20021120020009, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20021120020009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010560010003 + 10010560010004.

It is an arithmetic number, because the mean of its divisors is an integer number (10010560010004).

Almost surely, 2^{20021120020007} is an apocalyptic number.

20021120020007 is a deficient number, since it is larger than the sum of its proper divisors (1).

20021120020007 is an equidigital number, since it uses as much as digits as its factorization.

20021120020007 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 17.

Adding to 20021120020007 its reverse (70002002112002), we get a palindrome (90023122132009).

The spelling of 20021120020007 in words is "twenty trillion, twenty-one billion, one hundred twenty million, twenty thousand, seven".