33411121 has 2 divisors, whose sum is σ = 33411122. Its totient is φ = 33411120.

The previous prime is 33411113. The next prime is 33411127. The reversal of 33411121 is 12111433.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21986721 + 11424400 = 4689^2 + 3380^2 .

It is an emirp because it is prime and its reverse (12111433) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33411121 - 2³ = 33411113 is a prime.

It is a super-2 number, since 2×33411121² = 2232606012953282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33411095 and 33411104.

It is not a weakly prime, because it can be changed into another prime (33411127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16705560 + 16705561.

It is an arithmetic number, because the mean of its divisors is an integer number (16705561).

Almost surely, 2^33411121 is an apocalyptic number.

It is an amenable number.

33411121 is a deficient number, since it is larger than the sum of its proper divisors (1).

33411121 is an equidigital number, since it uses as much as digits as its factorization.

33411121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72, while the sum is 16.

The square root of 33411121 is about 5780.2353758303. The cubic root of 33411121 is about 322.0799442720.

Adding to 33411121 its reverse (12111433), we get a palindrome (45522554).

The spelling of 33411121 in words is "thirty-three million, four hundred eleven thousand, one hundred twenty-one".