1235000221 has 8 divisors (see below), whose sum is σ = 1520000384. Its totient is φ = 977142960.

The previous prime is 1235000219. The next prime is 1235000233. The reversal of 1235000221 is 1220005321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1235000221 - 2¹ = 1235000219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1235000195 and 1235000204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1235000281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6785625 + ... + 6785806.

It is an arithmetic number, because the mean of its divisors is an integer number (190000048).

Almost surely, 2^1235000221 is an apocalyptic number.

It is an amenable number.

1235000221 is a deficient number, since it is larger than the sum of its proper divisors (285000163).

1235000221 is a wasteful number, since it uses less digits than its factorization.

1235000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13571451.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1235000221 is about 35142.5699259459. The cubic root of 1235000221 is about 1072.8911883248.

Adding to 1235000221 its reverse (1220005321), we get a palindrome (2455005542).

The spelling of 1235000221 in words is "one billion, two hundred thirty-five million, two hundred twenty-one", and thus it is an aban number.