33342121 has 2 divisors, whose sum is σ = 33342122. Its totient is φ = 33342120.

The previous prime is 33342107. The next prime is 33342167. The reversal of 33342121 is 12124333.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25613721 + 7728400 = 5061^2 + 2780^2 .

It is a cyclic number.

It is not a de Polignac number, because 33342121 - 2⁷ = 33341993 is a prime.

It is a super-2 number, since 2×33342121² = 2223394065557282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33342181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16671060 + 16671061.

It is an arithmetic number, because the mean of its divisors is an integer number (16671061).

Almost surely, 2^33342121 is an apocalyptic number.

It is an amenable number.

33342121 is a deficient number, since it is larger than the sum of its proper divisors (1).

33342121 is an equidigital number, since it uses as much as digits as its factorization.

33342121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 19.

The square root of 33342121 is about 5774.2636760023. The cubic root of 33342121 is about 321.8580737132.

Adding to 33342121 its reverse (12124333), we get a palindrome (45466454).

The spelling of 33342121 in words is "thirty-three million, three hundred forty-two thousand, one hundred twenty-one".