20002220212120 has 16 divisors (see below), whose sum is σ = 45004995477360. Its totient is φ = 8000888084832.

The previous prime is 20002220212111. The next prime is 20002220212129. The reversal of 20002220212120 is 2121202220002.

It is an interprime number because it is at equal distance from previous prime (20002220212111) and next prime (20002220212129).

It is a junction number, because it is equal to n+sod(n) for n = 20002220212094 and 20002220212103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002220212129) 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, 250027752612 + ... + 250027752691.

It is an arithmetic number, because the mean of its divisors is an integer number (2812812217335).

Almost surely, 2^{20002220212120} is an apocalyptic number.

20002220212120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20002220212120 is an abundant number, since it is smaller than the sum of its proper divisors (25002775265240).

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

20002220212120 is a wasteful number, since it uses less digits than its factorization.

20002220212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500055505314 (or 500055505310 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20002220212120 its reverse (2121202220002), we get a palindrome (22123422432122).

The spelling of 20002220212120 in words is "twenty trillion, two billion, two hundred twenty million, two hundred twelve thousand, one hundred twenty".