201021021107 has 2 divisors, whose sum is σ = 201021021108. Its totient is φ = 201021021106.

The previous prime is 201021021067. The next prime is 201021021163. The reversal of 201021021107 is 701120120102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201021021107 - 2¹² = 201021017011 is a prime.

It is not a weakly prime, because it can be changed into another prime (201021029107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100510510553 + 100510510554.

It is an arithmetic number, because the mean of its divisors is an integer number (100510510554).

Almost surely, 2^201021021107 is an apocalyptic number.

201021021107 is a deficient number, since it is larger than the sum of its proper divisors (1).

201021021107 is an equidigital number, since it uses as much as digits as its factorization.

201021021107 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 17.

Adding to 201021021107 its reverse (701120120102), we get a palindrome (902141141209).

The spelling of 201021021107 in words is "two hundred one billion, twenty-one million, twenty-one thousand, one hundred seven".