20020200121209 has 8 divisors (see below), whose sum is σ = 26694342433440. Its totient is φ = 13346428944896.

The previous prime is 20020200121151. The next prime is 20020200121241. The reversal of 20020200121209 is 90212100202002.

It is a happy number.

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 20020200121209 - 2¹⁶ = 20020200055673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20020200221209) 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, 92658087 + ... + 92873900.

It is an arithmetic number, because the mean of its divisors is an integer number (3336792804180).

Almost surely, 2^{20020200121209} is an apocalyptic number.

It is an amenable number.

20020200121209 is a deficient number, since it is larger than the sum of its proper divisors (6674142312231).

20020200121209 is a wasteful number, since it uses less digits than its factorization.

20020200121209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185567959.

The product of its (nonzero) digits is 288, while the sum is 21.

The spelling of 20020200121209 in words is "twenty trillion, twenty billion, two hundred million, one hundred twenty-one thousand, two hundred nine".