2220333421 has 4 divisors (see below), whose sum is σ = 2227427452. Its totient is φ = 2213239392.

The previous prime is 2220333419. The next prime is 2220333443. The reversal of 2220333421 is 1243330222.

2220333421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47748100 + 2172585321 = 6910^2 + 46611^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220333421 - 2¹ = 2220333419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2220333392 and 2220333401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220333461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3546546 + ... + 3547171.

It is an arithmetic number, because the mean of its divisors is an integer number (556856863).

Almost surely, 2^2220333421 is an apocalyptic number.

It is an amenable number.

2220333421 is a deficient number, since it is larger than the sum of its proper divisors (7094031).

2220333421 is an equidigital number, since it uses as much as digits as its factorization.

2220333421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7094030.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 2220333421 is about 47120.4140580280. The cubic root of 2220333421 is about 1304.5860552516.

Adding to 2220333421 its reverse (1243330222), we get a palindrome (3463663643).

The spelling of 2220333421 in words is "two billion, two hundred twenty million, three hundred thirty-three thousand, four hundred twenty-one".