2223132421 has 2 divisors, whose sum is σ = 2223132422. Its totient is φ = 2223132420.

The previous prime is 2223132407. The next prime is 2223132433. The reversal of 2223132421 is 1242313222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2142671521 + 80460900 = 46289^2 + 8970^2 .

It is a cyclic number.

It is not a de Polignac number, because 2223132421 - 2¹⁵ = 2223099653 is a prime.

It is a super-2 number, since 2×2223132421² = 9884635522602642482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2223132392 and 2223132401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2223132451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111566210 + 1111566211.

It is an arithmetic number, because the mean of its divisors is an integer number (1111566211).

Almost surely, 2^2223132421 is an apocalyptic number.

It is an amenable number.

2223132421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2223132421 is an equidigital number, since it uses as much as digits as its factorization.

2223132421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 22.

The square root of 2223132421 is about 47150.1052066695. The cubic root of 2223132421 is about 1305.1340214574.

Adding to 2223132421 its reverse (1242313222), we get a palindrome (3465445643).

The spelling of 2223132421 in words is "two billion, two hundred twenty-three million, one hundred thirty-two thousand, four hundred twenty-one".