20020220221209 has 32 divisors (see below), whose sum is σ = 29742863230080. Its totient is φ = 11893461232128.

The previous prime is 20020220221181. The next prime is 20020220221231. The reversal of 20020220221209 is 90212202202002.

It is not a de Polignac number, because 20020220221209 - 2²⁷ = 20020086003481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20020220221409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5953642 + ... + 8688284.

It is an arithmetic number, because the mean of its divisors is an integer number (929464475940).

Almost surely, 2^{20020220221209} is an apocalyptic number.

20020220221209 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

20020220221209 is a deficient number, since it is larger than the sum of its proper divisors (9722643008871).

20020220221209 is a wasteful number, since it uses less digits than its factorization.

20020220221209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2741161.

The product of its (nonzero) digits is 1152, while the sum is 24.

The spelling of 20020220221209 in words is "twenty trillion, twenty billion, two hundred twenty million, two hundred twenty-one thousand, two hundred nine".