20002200010120 has 16 divisors (see below), whose sum is σ = 45004950022860. Its totient is φ = 8000880004032.

The previous prime is 20002200010097. The next prime is 20002200010127. The reversal of 20002200010120 is 2101000220002.

It can be written as a sum of positive squares in 2 ways, for example, as 19890404737956 + 111795272164 = 4459866^2 + 334358^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 20002200010097 and 20002200010106.

It is not an unprimeable number, because it can be changed into a prime (20002200010127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250027500087 + ... + 250027500166.

Almost surely, 2^{20002200010120} is an apocalyptic number.

20002200010120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20002200010120 is an abundant number, since it is smaller than the sum of its proper divisors (25002750012740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20002200010120 is a wasteful number, since it uses less digits than its factorization.

20002200010120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500055000264 (or 500055000260 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20002200010120 its reverse (2101000220002), we get a palindrome (22103200230122).

The spelling of 20002200010120 in words is "twenty trillion, two billion, two hundred million, ten thousand, one hundred twenty".