1222544907 has 18 divisors (see below), whose sum is σ = 1832118652. Its totient is φ = 814666572.

The previous prime is 1222544903. The next prime is 1222544927. The reversal of 1222544907 is 7094452221.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

1222544907 is a `hidden beast` number, since 1 + 2 + 22 + 544 + 90 + 7 = 666.

It is not a de Polignac number, because 1222544907 - 2² = 1222544903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222544903) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 543928 + ... + 546170.

Almost surely, 2^1222544907 is an apocalyptic number.

1222544907 is a deficient number, since it is larger than the sum of its proper divisors (609573745).

1222544907 is an frugal number, since it uses more digits than its factorization.

1222544907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4501 (or 2246 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 1222544907 is about 34964.9096523929. The cubic root of 1222544907 is about 1069.2721946740.

The spelling of 1222544907 in words is "one billion, two hundred twenty-two million, five hundred forty-four thousand, nine hundred seven".