2222203421 has 8 divisors (see below), whose sum is σ = 2242881144. Its totient is φ = 2201543680.

The previous prime is 2222203393. The next prime is 2222203441. The reversal of 2222203421 is 1243022222.

It can be written as a sum of positive squares in 4 ways, for example, as 155500900 + 2066702521 = 12470^2 + 45461^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2222203421 is a prime.

It is a super-3 number, since 3×2222203421³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2222203393 and 2222203402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222203441) 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, 476915 + ... + 481551.

It is an arithmetic number, because the mean of its divisors is an integer number (280360143).

Almost surely, 2^2222203421 is an apocalyptic number.

It is an amenable number.

2222203421 is a deficient number, since it is larger than the sum of its proper divisors (20677723).

2222203421 is a wasteful number, since it uses less digits than its factorization.

2222203421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8991.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2222203421 is about 47140.2526616055. The cubic root of 2222203421 is about 1304.9522001644.

Adding to 2222203421 its reverse (1243022222), we get a palindrome (3465225643).

The spelling of 2222203421 in words is "two billion, two hundred twenty-two million, two hundred three thousand, four hundred twenty-one".