1224020001 has 16 divisors (see below), whose sum is σ = 1666526400. Its totient is φ = 798832320.

The previous prime is 1224019999. The next prime is 1224020029. The reversal of 1224020001 is 1000204221.

It is not a de Polignac number, because 1224020001 - 2¹ = 1224019999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1224022001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64950 + ... + 81648.

It is an arithmetic number, because the mean of its divisors is an integer number (104157900).

Almost surely, 2^1224020001 is an apocalyptic number.

It is an amenable number.

1224020001 is a deficient number, since it is larger than the sum of its proper divisors (442506399).

1224020001 is a wasteful number, since it uses less digits than its factorization.

1224020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17216.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1224020001 is about 34985.9972131709. The cubic root of 1224020001 is about 1069.7020747397.

Adding to 1224020001 its reverse (1000204221), we get a palindrome (2224224222).

The spelling of 1224020001 in words is "one billion, two hundred twenty-four million, twenty thousand, one".