33223345121 has 4 divisors (see below), whose sum is σ = 33225530052. Its totient is φ = 33221160192.

The previous prime is 33223345093. The next prime is 33223345163. The reversal of 33223345121 is 12154332233.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12154332233 = 263 ⋅46214191.

It can be written as a sum of positive squares in 2 ways, for example, as 15088682896 + 18134662225 = 122836^2 + 134665^2 .

It is a cyclic number.

It is not a de Polignac number, because 33223345121 - 2¹⁴ = 33223328737 is a prime.

It is a super-2 number, since 2×33223345121² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (33223345321) 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, 1069496 + ... + 1100121.

It is an arithmetic number, because the mean of its divisors is an integer number (8306382513).

Almost surely, 2^33223345121 is an apocalyptic number.

It is an amenable number.

33223345121 is a deficient number, since it is larger than the sum of its proper divisors (2184931).

33223345121 is a wasteful number, since it uses less digits than its factorization.

33223345121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2184930.

The product of its digits is 12960, while the sum is 29.

Adding to 33223345121 its reverse (12154332233), we get a palindrome (45377677354).

The spelling of 33223345121 in words is "thirty-three billion, two hundred twenty-three million, three hundred forty-five thousand, one hundred twenty-one".