21200567107 has 2 divisors, whose sum is σ = 21200567108. Its totient is φ = 21200567106.

The previous prime is 21200567093. The next prime is 21200567149. The reversal of 21200567107 is 70176500212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21200567107 - 2⁷ = 21200566979 is a prime.

It is not a weakly prime, because it can be changed into another prime (21200567807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10600283553 + 10600283554.

It is an arithmetic number, because the mean of its divisors is an integer number (10600283554).

Almost surely, 2^21200567107 is an apocalyptic number.

21200567107 is a deficient number, since it is larger than the sum of its proper divisors (1).

21200567107 is an equidigital number, since it uses as much as digits as its factorization.

21200567107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5880, while the sum is 31.

The spelling of 21200567107 in words is "twenty-one billion, two hundred million, five hundred sixty-seven thousand, one hundred seven".