2120022222220 has 96 divisors (see below), whose sum is σ = 5266046177280. Its totient is φ = 701560984320.

The previous prime is 2120022222181. The next prime is 2120022222229. The reversal of 2120022222220 is 222222200212.

It is not an unprimeable number, because it can be changed into a prime (2120022222229) 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, 1000422 + ... + 2289298.

It is an arithmetic number, because the mean of its divisors is an integer number (54854647680).

Almost surely, 2^{2120022222220} is an apocalyptic number.

2120022222220 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 2120022222220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2633023088640).

2120022222220 is an abundant number, since it is smaller than the sum of its proper divisors (3146023955060).

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

2120022222220 is a wasteful number, since it uses less digits than its factorization.

2120022222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289303 (or 1289301 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 2120022222220 its reverse (222222200212), we get a palindrome (2342244422432).

The spelling of 2120022222220 in words is "two trillion, one hundred twenty billion, twenty-two million, two hundred twenty-two thousand, two hundred twenty".