33220741 has 2 divisors, whose sum is σ = 33220742. Its totient is φ = 33220740.

The previous prime is 33220727. The next prime is 33220751. The reversal of 33220741 is 14702233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33108516 + 112225 = 5754^2 + 335^2 .

It is a cyclic number.

It is not a de Polignac number, because 33220741 - 2⁷ = 33220613 is a prime.

It is a super-2 number, since 2×33220741² = 2207235265178162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33220751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16610370 + 16610371.

It is an arithmetic number, because the mean of its divisors is an integer number (16610371).

Almost surely, 2^33220741 is an apocalyptic number.

It is an amenable number.

33220741 is a deficient number, since it is larger than the sum of its proper divisors (1).

33220741 is an equidigital number, since it uses as much as digits as its factorization.

33220741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 33220741 is about 5763.7436618920. The cubic root of 33220741 is about 321.4670304411.

Adding to 33220741 its reverse (14702233), we get a palindrome (47922974).

The spelling of 33220741 in words is "thirty-three million, two hundred twenty thousand, seven hundred forty-one".