1332112221 has 48 divisors (see below), whose sum is σ = 2163957120. Its totient is φ = 782559360.

The previous prime is 1332112219. The next prime is 1332112237. The reversal of 1332112221 is 1222112331.

1332112221 is a `hidden beast` number, since 1 + 332 + 112 + 221 = 666.

It is not a de Polignac number, because 1332112221 - 2¹ = 1332112219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1332112194 and 1332112203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1332112241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1314511 + ... + 1315523.

It is an arithmetic number, because the mean of its divisors is an integer number (45082440).

Almost surely, 2^1332112221 is an apocalyptic number.

1332112221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1332112221 is a deficient number, since it is larger than the sum of its proper divisors (831844899).

1332112221 is a wasteful number, since it uses less digits than its factorization.

1332112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426 (or 1423 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 1332112221 is about 36498.1125676383. The cubic root of 1332112221 is about 1100.3063116647.

Adding to 1332112221 its reverse (1222112331), we get a palindrome (2554224552).

The spelling of 1332112221 in words is "one billion, three hundred thirty-two million, one hundred twelve thousand, two hundred twenty-one".