20020210210109 has 8 divisors (see below), whose sum is σ = 20296501891512. Its totient is φ = 19743973724160.

The previous prime is 20020210210097. The next prime is 20020210210157. The reversal of 20020210210109 is 90101201202002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 178058680900 + 19842151529209 = 421970^2 + 4454453^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20020210210109 - 2⁴ = 20020210210093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020210210309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13068164 + ... + 14519549.

It is an arithmetic number, because the mean of its divisors is an integer number (2537062736439).

Almost surely, 2^{20020210210109} is an apocalyptic number.

It is an amenable number.

20020210210109 is a deficient number, since it is larger than the sum of its proper divisors (276291681403).

20020210210109 is an equidigital number, since it uses as much as digits as its factorization.

20020210210109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27597727.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 20020210210109 in words is "twenty trillion, twenty billion, two hundred ten million, two hundred ten thousand, one hundred nine".