2120220305 has 32 divisors (see below), whose sum is σ = 3012595200. Its totient is φ = 1401587712.

The previous prime is 2120220281. The next prime is 2120220313. The reversal of 2120220305 is 5030220212.

It is not a de Polignac number, because 2120220305 - 2¹² = 2120216209 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 931649 + ... + 933921.

It is an arithmetic number, because the mean of its divisors is an integer number (94143600).

Almost surely, 2^2120220305 is an apocalyptic number.

It is an amenable number.

2120220305 is a deficient number, since it is larger than the sum of its proper divisors (892374895).

2120220305 is a wasteful number, since it uses less digits than its factorization.

2120220305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3233.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2120220305 is about 46045.8500301602. The cubic root of 2120220305 is about 1284.6761547211.

Adding to 2120220305 its reverse (5030220212), we get a palindrome (7150440517).

The spelling of 2120220305 in words is "two billion, one hundred twenty million, two hundred twenty thousand, three hundred five".