20220007 has 2 divisors, whose sum is σ = 20220008. Its totient is φ = 20220006.

The previous prime is 20219951. The next prime is 20220023. The reversal of 20220007 is 70002202.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20220007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20220077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110003 + 10110004.

It is an arithmetic number, because the mean of its divisors is an integer number (10110004).

Almost surely, 2^20220007 is an apocalyptic number.

20220007 is a deficient number, since it is larger than the sum of its proper divisors (1).

20220007 is an equidigital number, since it uses as much as digits as its factorization.

20220007 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 13.

The square root of 20220007 is about 4496.6662095379. Note that the first 3 decimals coincide. The cubic root of 20220007 is about 272.4334523129.

Adding to 20220007 its reverse (70002202), we get a palindrome (90222209).

The spelling of 20220007 in words is "twenty million, two hundred twenty thousand, seven".