1213225368 has 32 divisors (see below), whose sum is σ = 3043874160. Its totient is φ = 402967040.

The previous prime is 1213225337. The next prime is 1213225379. The reversal of 1213225368 is 8635223121.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 83205 + ... + 96692.

Almost surely, 2^1213225368 is an apocalyptic number.

It is an amenable number.

1213225368 is an abundant number, since it is smaller than the sum of its proper divisors (1830648792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213225368 is a wasteful number, since it uses less digits than its factorization.

1213225368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180187 (or 180183 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 1213225368 is about 34831.3848131251. The cubic root of 1213225368 is about 1066.5482174895.

Adding to 1213225368 its reverse (8635223121), we get a palindrome (9848448489).

The spelling of 1213225368 in words is "one billion, two hundred thirteen million, two hundred twenty-five thousand, three hundred sixty-eight".