2120607221 has 8 divisors (see below), whose sum is σ = 2210868000. Its totient is φ = 2032207632.

The previous prime is 2120607179. The next prime is 2120607253. The reversal of 2120607221 is 1227060212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2120607221 - 2²² = 2116412917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120607121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 462971 + ... + 467528.

It is an arithmetic number, because the mean of its divisors is an integer number (276358500).

Almost surely, 2^2120607221 is an apocalyptic number.

It is an amenable number.

2120607221 is a deficient number, since it is larger than the sum of its proper divisors (90260779).

2120607221 is an equidigital number, since it uses as much as digits as its factorization.

2120607221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930595.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 2120607221 is about 46050.0512594720. The cubic root of 2120607221 is about 1284.7542962118.

Adding to 2120607221 its reverse (1227060212), we get a palindrome (3347667433).

The spelling of 2120607221 in words is "two billion, one hundred twenty million, six hundred seven thousand, two hundred twenty-one".