102200020020209 has 4 divisors (see below), whose sum is σ = 102206915657460. Its totient is φ = 102193124382960.

The previous prime is 102200020020193. The next prime is 102200020020227. The reversal of 102200020020209 is 902020020002201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31147393570225 + 71052626449984 = 5580985^2 + 8429272^2 .

It is a cyclic number.

It is not a de Polignac number, because 102200020020209 - 2⁴ = 102200020020193 is a prime.

It is a super-2 number, since 2×102200020020209² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102200020022209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3447796394 + ... + 3447826035.

It is an arithmetic number, because the mean of its divisors is an integer number (25551728914365).

Almost surely, 2^{102200020020209} is an apocalyptic number.

It is an amenable number.

102200020020209 is a deficient number, since it is larger than the sum of its proper divisors (6895637251).

102200020020209 is an equidigital number, since it uses as much as digits as its factorization.

102200020020209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6895637250.

The product of its (nonzero) digits is 288, while the sum is 20.

The spelling of 102200020020209 in words is "one hundred two trillion, two hundred billion, twenty million, twenty thousand, two hundred nine".