2033442113221 has 4 divisors (see below), whose sum is σ = 2033612530092. Its totient is φ = 2033271696352.

The previous prime is 2033442113137. The next prime is 2033442113239. The reversal of 2033442113221 is 1223112443302.

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 1325984492196 + 707457621025 = 1151514^2 + 841105^2 .

It is a cyclic number.

It is not a de Polignac number, because 2033442113221 - 2⁷ = 2033442113093 is a prime.

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 2033442113221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2033442113281) 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, 85190536 + ... + 85214401.

It is an arithmetic number, because the mean of its divisors is an integer number (508403132523).

Almost surely, 2^{2033442113221} is an apocalyptic number.

It is an amenable number.

2033442113221 is a deficient number, since it is larger than the sum of its proper divisors (170416871).

2033442113221 is a wasteful number, since it uses less digits than its factorization.

2033442113221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170416870.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 2033442113221 its reverse (1223112443302), we get a palindrome (3256554556523).

The spelling of 2033442113221 in words is "two trillion, thirty-three billion, four hundred forty-two million, one hundred thirteen thousand, two hundred twenty-one".