1232220213 has 24 divisors (see below), whose sum is σ = 2089122048. Its totient is φ = 685094112.

The previous prime is 1232220203. The next prime is 1232220221. The reversal of 1232220213 is 3120222321.

1232220213 is a `hidden beast` number, since 1 + 232 + 220 + 213 = 666.

It is not a de Polignac number, because 1232220213 - 2¹³ = 1232212021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232220203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 261981 + ... + 266642.

It is an arithmetic number, because the mean of its divisors is an integer number (87046752).

Almost surely, 2^1232220213 is an apocalyptic number.

It is an amenable number.

1232220213 is a deficient number, since it is larger than the sum of its proper divisors (856901835).

1232220213 is a wasteful number, since it uses less digits than its factorization.

1232220213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528673 (or 528670 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1232220213 is about 35102.9943594560. The cubic root of 1232220213 is about 1072.0855509827.

Adding to 1232220213 its reverse (3120222321), we get a palindrome (4352442534).

It can be divided in two parts, 1232 and 220213, that added together give a triangular number (221445 = T₆₆₅).

The spelling of 1232220213 in words is "one billion, two hundred thirty-two million, two hundred twenty thousand, two hundred thirteen".