1229220475 has 48 divisors (see below), whose sum is σ = 1799041600. Its totient is φ = 815546880.

The previous prime is 1229220457. The next prime is 1229220481. The reversal of 1229220475 is 5740229221.

It is a happy number.

It is not a de Polignac number, because 1229220475 - 2⁹ = 1229219963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1229220475.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1482361 + ... + 1483189.

Almost surely, 2^1229220475 is an apocalyptic number.

1229220475 is a deficient number, since it is larger than the sum of its proper divisors (569821125).

1229220475 is a wasteful number, since it uses less digits than its factorization.

1229220475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112 (or 1107 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 1229220475 is about 35060.2406580445. The cubic root of 1229220475 is about 1071.2148762599.

Adding to 1229220475 its reverse (5740229221), we get a palindrome (6969449696).

The spelling of 1229220475 in words is "one billion, two hundred twenty-nine million, two hundred twenty thousand, four hundred seventy-five".