33333120222121 has 4 divisors (see below), whose sum is σ = 33363617131012. Its totient is φ = 33302623313232.

The previous prime is 33333120222043. The next prime is 33333120222137. The reversal of 33333120222121 is 12122202133333.

It is a happy number.

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 25067845968400 + 8265274253721 = 5006780^2 + 2874939^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33333120222121 is a prime.

It is a super-2 number, since 2×33333120222121² (a number of 28 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 33333120222121.

It is not an unprimeable number, because it can be changed into a prime (33333120222151) 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, 15248452806 + ... + 15248454991.

It is an arithmetic number, because the mean of its divisors is an integer number (8340904282753).

Almost surely, 2^{33333120222121} is an apocalyptic number.

It is an amenable number.

33333120222121 is a deficient number, since it is larger than the sum of its proper divisors (30496908891).

33333120222121 is a wasteful number, since it uses less digits than its factorization.

33333120222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30496908890.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 33333120222121 its reverse (12122202133333), we get a palindrome (45455322355454).

The spelling of 33333120222121 in words is "thirty-three trillion, three hundred thirty-three billion, one hundred twenty million, two hundred twenty-two thousand, one hundred twenty-one".