210100220000009 has 2 divisors, whose sum is σ = 210100220000010. Its totient is φ = 210100220000008.

The previous prime is 210100219999939. The next prime is 210100220000059. The reversal of 210100220000009 is 900000022001012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122610443161600 + 87489776838409 = 11072960^2 + 9353597^2 .

It is a cyclic number.

It is not a de Polignac number, because 210100220000009 - 2⁸ = 210100219999753 is a prime.

It is not a weakly prime, because it can be changed into another prime (210100220000059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105050110000004 + 105050110000005.

It is an arithmetic number, because the mean of its divisors is an integer number (105050110000005).

Almost surely, 2^{210100220000009} is an apocalyptic number.

It is an amenable number.

210100220000009 is a deficient number, since it is larger than the sum of its proper divisors (1).

210100220000009 is an equidigital number, since it uses as much as digits as its factorization.

210100220000009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

The spelling of 210100220000009 in words is "two hundred ten trillion, one hundred billion, two hundred twenty million, nine", and thus it is an aban number.