2120220220 has 24 divisors (see below), whose sum is σ = 4484967984. Its totient is φ = 841896576.

The previous prime is 2120220191. The next prime is 2120220233. The reversal of 2120220220 is 220220212.

It is a self number, because there is not a number n which added to its sum of digits gives 2120220220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384162 + ... + 389641.

It is an arithmetic number, because the mean of its divisors is an integer number (186873666).

Almost surely, 2^2120220220 is an apocalyptic number.

2120220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120220220 is an abundant number, since it is smaller than the sum of its proper divisors (2364747764).

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

2120220220 is a wasteful number, since it uses less digits than its factorization.

2120220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773949 (or 773947 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 2120220220 is about 46045.8491071671. The cubic root of 2120220220 is about 1284.6761375534.

Adding to 2120220220 its reverse (220220212), we get a palindrome (2340440432).

The spelling of 2120220220 in words is "two billion, one hundred twenty million, two hundred twenty thousand, two hundred twenty".