1222406249 has 8 divisors (see below), whose sum is σ = 1287084000. Its totient is φ = 1157762592.

The previous prime is 1222406203. The next prime is 1222406293. The reversal of 1222406249 is 9426042221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222406249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222409249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101837 + ... + 113205.

It is an arithmetic number, because the mean of its divisors is an integer number (160885500).

Almost surely, 2^1222406249 is an apocalyptic number.

1222406249 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1222406249 is a deficient number, since it is larger than the sum of its proper divisors (64677751).

1222406249 is a wasteful number, since it uses less digits than its factorization.

1222406249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17047.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 1222406249 is about 34962.9267796619. The cubic root of 1222406249 is about 1069.2317684154.

The spelling of 1222406249 in words is "one billion, two hundred twenty-two million, four hundred six thousand, two hundred forty-nine".