20201220107 has 2 divisors, whose sum is σ = 20201220108. Its totient is φ = 20201220106.

The previous prime is 20201220101. The next prime is 20201220119. The reversal of 20201220107 is 70102210202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20201220107 - 2²² = 20197025803 is a prime.

It is a super-2 number, since 2×20201220107² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20201220101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100610053 + 10100610054.

It is an arithmetic number, because the mean of its divisors is an integer number (10100610054).

Almost surely, 2^20201220107 is an apocalyptic number.

20201220107 is a deficient number, since it is larger than the sum of its proper divisors (1).

20201220107 is an equidigital number, since it uses as much as digits as its factorization.

20201220107 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 20201220107 its reverse (70102210202), we get a palindrome (90303430309).

The spelling of 20201220107 in words is "twenty billion, two hundred one million, two hundred twenty thousand, one hundred seven".