10021111209959 has 2 divisors, whose sum is σ = 10021111209960. Its totient is φ = 10021111209958.

The previous prime is 10021111209899. The next prime is 10021111210013. The reversal of 10021111209959 is 95990211112001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10021111209959 - 2¹² = 10021111205863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10021111206959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010555604979 + 5010555604980.

It is an arithmetic number, because the mean of its divisors is an integer number (5010555604980).

Almost surely, 2^{10021111209959} is an apocalyptic number.

10021111209959 is a deficient number, since it is larger than the sum of its proper divisors (1).

10021111209959 is an equidigital number, since it uses as much as digits as its factorization.

10021111209959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14580, while the sum is 41.

The spelling of 10021111209959 in words is "ten trillion, twenty-one billion, one hundred eleven million, two hundred nine thousand, nine hundred fifty-nine".