2233121233221 has 10 divisors (see below), whose sum is σ = 3335897150982. Its totient is φ = 1488747488760.

The previous prime is 2233121233183. The next prime is 2233121233229. The reversal of 2233121233221 is 1223321213322.

2233121233221 is a `hidden beast` number, since 2 + 2 + 3 + 312 + 1 + 23 + 322 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2229213233025 + 3908000196 = 1493055^2 + 62514^2 .

It is not a de Polignac number, because 2233121233221 - 2⁶ = 2233121233157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2233121233229) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 13784698890 + ... + 13784699051.

Almost surely, 2^{2233121233221} is an apocalyptic number.

It is an amenable number.

2233121233221 is a deficient number, since it is larger than the sum of its proper divisors (1102775917761).

2233121233221 is an equidigital number, since it uses as much as digits as its factorization.

2233121233221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27569397953 (or 27569397944 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

Adding to 2233121233221 its reverse (1223321213322), we get a palindrome (3456442446543).

The spelling of 2233121233221 in words is "two trillion, two hundred thirty-three billion, one hundred twenty-one million, two hundred thirty-three thousand, two hundred twenty-one".