2120222002120 has 64 divisors (see below), whose sum is σ = 4845534307200. Its totient is φ = 834788021760.

The previous prime is 2120222002081. The next prime is 2120222002121. The reversal of 2120222002120 is 212002220212.

It is a junction number, because it is equal to n+sod(n) for n = 2120222002094 and 2120222002103.

It is not an unprimeable number, because it can be changed into a prime (2120222002121) 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, 1147291 + ... + 2357269.

It is an arithmetic number, because the mean of its divisors is an integer number (75711473550).

Almost surely, 2^{2120222002120} is an apocalyptic number.

2120222002120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2120222002120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2422767153600).

2120222002120 is an abundant number, since it is smaller than the sum of its proper divisors (2725312305080).

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

2120222002120 is a wasteful number, since it uses less digits than its factorization.

2120222002120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210678 (or 1210674 counting only the distinct ones).

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

Adding to 2120222002120 its reverse (212002220212), we get a palindrome (2332224222332).

The spelling of 2120222002120 in words is "two trillion, one hundred twenty billion, two hundred twenty-two million, two thousand, one hundred twenty".