33412125121 has 4 divisors (see below), whose sum is σ = 34227055044. Its totient is φ = 32597195200.

The previous prime is 33412125101. The next prime is 33412125161. The reversal of 33412125121 is 12152121433.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7608200625 + 25803924496 = 87225^2 + 160636^2 .

It is a cyclic number.

It is not a de Polignac number, because 33412125121 - 2¹⁵ = 33412092353 is a prime.

It is a super-2 number, since 2×33412125121² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33412125101) 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, 407464900 + ... + 407464981.

It is an arithmetic number, because the mean of its divisors is an integer number (8556763761).

Almost surely, 2^33412125121 is an apocalyptic number.

It is an amenable number.

33412125121 is a deficient number, since it is larger than the sum of its proper divisors (814929923).

33412125121 is an equidigital number, since it uses as much as digits as its factorization.

33412125121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814929922.

The product of its digits is 1440, while the sum is 25.

Adding to 33412125121 its reverse (12152121433), we get a palindrome (45564246554).

The spelling of 33412125121 in words is "thirty-three billion, four hundred twelve million, one hundred twenty-five thousand, one hundred twenty-one".