2232012011221 has 4 divisors (see below), whose sum is σ = 2233009783692. Its totient is φ = 2231014238752.

The previous prime is 2232012011197. The next prime is 2232012011233. The reversal of 2232012011221 is 1221102102322.

2232012011221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1646373838321 + 585638172900 = 1283111^2 + 765270^2 .

It is a cyclic number.

It is not a de Polignac number, because 2232012011221 - 2¹³ = 2232012003029 is a prime.

It is a super-3 number, since 3×2232012011221³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2232012011521) 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, 498882880 + ... + 498887353.

It is an arithmetic number, because the mean of its divisors is an integer number (558252445923).

Almost surely, 2^{2232012011221} is an apocalyptic number.

It is an amenable number.

2232012011221 is a deficient number, since it is larger than the sum of its proper divisors (997772471).

2232012011221 is an equidigital number, since it uses as much as digits as its factorization.

2232012011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997772470.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2232012011221 its reverse (1221102102322), we get a palindrome (3453114113543).

The spelling of 2232012011221 in words is "two trillion, two hundred thirty-two billion, twelve million, eleven thousand, two hundred twenty-one".