1224550121 has 8 divisors (see below), whose sum is σ = 1229495904. Its totient is φ = 1219615200.

The previous prime is 1224550091. The next prime is 1224550123. The reversal of 1224550121 is 1210554221.

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 1224550121 - 2¹⁰ = 1224549097 is a prime.

It is a super-2 number, since 2×1224550121² = 2999045997682229282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1224550123) 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, 278486 + ... + 282848.

It is an arithmetic number, because the mean of its divisors is an integer number (153686988).

Almost surely, 2^1224550121 is an apocalyptic number.

It is an amenable number.

1224550121 is a deficient number, since it is larger than the sum of its proper divisors (4945783).

1224550121 is an equidigital number, since it uses as much as digits as its factorization.

1224550121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5431.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1224550121 is about 34993.5725669729. The cubic root of 1224550121 is about 1069.8564808817.

The spelling of 1224550121 in words is "one billion, two hundred twenty-four million, five hundred fifty thousand, one hundred twenty-one".