1223215132 has 6 divisors (see below), whose sum is σ = 2140626488. Its totient is φ = 611607564.

The previous prime is 1223215129. The next prime is 1223215159. The reversal of 1223215132 is 2315123221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152901888 + ... + 152901895.

Almost surely, 2^1223215132 is an apocalyptic number.

It is an amenable number.

1223215132 is a deficient number, since it is larger than the sum of its proper divisors (917411356).

1223215132 is a wasteful number, since it uses less digits than its factorization.

1223215132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305803787 (or 305803785 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 1223215132 is about 34974.4925910298. The cubic root of 1223215132 is about 1069.4675581956.

Adding to 1223215132 its reverse (2315123221), we get a palindrome (3538338353).

The spelling of 1223215132 in words is "one billion, two hundred twenty-three million, two hundred fifteen thousand, one hundred thirty-two".