33253222121 has 32 divisors (see below), whose sum is σ = 40012431360. Its totient is φ = 27037354176.

The previous prime is 33253222117. The next prime is 33253222193. The reversal of 33253222121 is 12122235233.

It is not a de Polignac number, because 33253222121 - 2² = 33253222117 is a prime.

It is a super-2 number, since 2×33253222121² (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 (33253222021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6757700 + ... + 6762618.

It is an arithmetic number, because the mean of its divisors is an integer number (1250388480).

Almost surely, 2^33253222121 is an apocalyptic number.

It is an amenable number.

33253222121 is a deficient number, since it is larger than the sum of its proper divisors (6759209239).

33253222121 is a wasteful number, since it uses less digits than its factorization.

33253222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5613.

The product of its digits is 4320, while the sum is 26.

Adding to 33253222121 its reverse (12122235233), we get a palindrome (45375457354).

The spelling of 33253222121 in words is "thirty-three billion, two hundred fifty-three million, two hundred twenty-two thousand, one hundred twenty-one".