33214421 has 2 divisors, whose sum is σ = 33214422. Its totient is φ = 33214420.

The previous prime is 33214409. The next prime is 33214427. The reversal of 33214421 is 12441233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31798321 + 1416100 = 5639^2 + 1190^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33214421 is a prime.

It is a super-2 number, since 2×33214421² = 2206395524730482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33214393 and 33214402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33214427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16607210 + 16607211.

It is an arithmetic number, because the mean of its divisors is an integer number (16607211).

Almost surely, 2^33214421 is an apocalyptic number.

It is an amenable number.

33214421 is a deficient number, since it is larger than the sum of its proper divisors (1).

33214421 is an equidigital number, since it uses as much as digits as its factorization.

33214421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 20.

The square root of 33214421 is about 5763.1953810365. The cubic root of 33214421 is about 321.4466435741.

Adding to 33214421 its reverse (12441233), we get a palindrome (45655654).

The spelling of 33214421 in words is "thirty-three million, two hundred fourteen thousand, four hundred twenty-one".