1213352229 has 4 divisors (see below), whose sum is σ = 1617802976. Its totient is φ = 808901484.

The previous prime is 1213352227. The next prime is 1213352243. The reversal of 1213352229 is 9222533121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1213352229 - 2¹ = 1213352227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1213352196 and 1213352205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213352227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202225369 + ... + 202225374.

It is an arithmetic number, because the mean of its divisors is an integer number (404450744).

Almost surely, 2^1213352229 is an apocalyptic number.

It is an amenable number.

1213352229 is a deficient number, since it is larger than the sum of its proper divisors (404450747).

1213352229 is an equidigital number, since it uses as much as digits as its factorization.

1213352229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404450746.

The product of its digits is 6480, while the sum is 30.

The square root of 1213352229 is about 34833.2058386821. The cubic root of 1213352229 is about 1066.5853907582.

The spelling of 1213352229 in words is "one billion, two hundred thirteen million, three hundred fifty-two thousand, two hundred twenty-nine".