220120020001209 has 16 divisors (see below), whose sum is σ = 296414935951680. Its totient is φ = 145293035244480.

The previous prime is 220120020001087. The next prime is 220120020001213. The reversal of 220120020001209 is 902100020021022.

It is a happy number.

220120020001209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 220120020001209 - 2²⁰ = 220120018952633 is a prime.

It is a super-2 number, since 2×220120020001209² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220120020001289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 892778874 + ... + 893025395.

It is an arithmetic number, because the mean of its divisors is an integer number (18525933496980).

Almost surely, 2^{220120020001209} is an apocalyptic number.

It is an amenable number.

220120020001209 is a deficient number, since it is larger than the sum of its proper divisors (76294915950471).

220120020001209 is a wasteful number, since it uses less digits than its factorization.

220120020001209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785804680.

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

The spelling of 220120020001209 in words is "two hundred twenty trillion, one hundred twenty billion, twenty million, one thousand, two hundred nine".