1217229 has 24 divisors (see below), whose sum is σ = 1858080. Its totient is φ = 704352.

The previous prime is 1217219. The next prime is 1217233. The reversal of 1217229 is 9227121.

It is not a de Polignac number, because 1217229 - 2⁴ = 1217213 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1217199 and 1217208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1217219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20602 + ... + 20660.

It is an arithmetic number, because the mean of its divisors is an integer number (77420).

2^1217229 is an apocalyptic number.

It is an amenable number.

1217229 is a deficient number, since it is larger than the sum of its proper divisors (640851).

1217229 is a wasteful number, since it uses less digits than its factorization.

1217229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121 (or 98 counting only the distinct ones).

The product of its digits is 504, while the sum is 24.

The square root of 1217229 is about 1103.2810158795. The cubic root of 1217229 is about 106.7720128941.

The spelling of 1217229 in words is "one million, two hundred seventeen thousand, two hundred twenty-nine".