1332121213 has 4 divisors (see below), whose sum is σ = 1332212508. Its totient is φ = 1332029920.

The previous prime is 1332121211. The next prime is 1332121237. The reversal of 1332121213 is 3121212331.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 355058649 + 977062564 = 18843^2 + 31258^2 .

It is a cyclic number.

It is not a de Polignac number, because 1332121213 - 2¹ = 1332121211 is a prime.

It is a super-2 number, since 2×1332121213² = 3549093852249182738, which contains 22 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 (1332121211) 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 3 ways as a sum of consecutive naturals, for example, 18298 + ... + 54763.

It is an arithmetic number, because the mean of its divisors is an integer number (333053127).

Almost surely, 2^1332121213 is an apocalyptic number.

It is an amenable number.

1332121213 is a deficient number, since it is larger than the sum of its proper divisors (91295).

1332121213 is an equidigital number, since it uses as much as digits as its factorization.

1332121213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91294.

The product of its digits is 216, while the sum is 19.

The square root of 1332121213 is about 36498.2357518826. The cubic root of 1332121213 is about 1100.3087874151.

Adding to 1332121213 its reverse (3121212331), we get a palindrome (4453333544).

The spelling of 1332121213 in words is "one billion, three hundred thirty-two million, one hundred twenty-one thousand, two hundred thirteen".