33335141221 has 4 divisors (see below), whose sum is σ = 33434058892. Its totient is φ = 33236223552.

The previous prime is 33335141197. The next prime is 33335141251. The reversal of 33335141221 is 12214153333.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12214153333 = 503 ⋅24282611.

It can be written as a sum of positive squares in 2 ways, for example, as 11463984900 + 21871156321 = 107070^2 + 147889^2 .

It is a cyclic number.

It is not a de Polignac number, because 33335141221 - 2⁷ = 33335141093 is a prime.

It is a super-2 number, since 2×33335141221² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33335141221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33335141251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49458330 + ... + 49459003.

It is an arithmetic number, because the mean of its divisors is an integer number (8358514723).

Almost surely, 2^33335141221 is an apocalyptic number.

It is an amenable number.

33335141221 is a deficient number, since it is larger than the sum of its proper divisors (98917671).

33335141221 is an equidigital number, since it uses as much as digits as its factorization.

33335141221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98917670.

The product of its digits is 6480, while the sum is 28.

Adding to 33335141221 its reverse (12214153333), we get a palindrome (45549294554).

The spelling of 33335141221 in words is "thirty-three billion, three hundred thirty-five million, one hundred forty-one thousand, two hundred twenty-one".