1224520001 has 2 divisors, whose sum is σ = 1224520002. Its totient is φ = 1224520000.

The previous prime is 1224519997. The next prime is 1224520007. The reversal of 1224520001 is 1000254221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 993510400 + 231009601 = 31520^2 + 15199^2 .

It is a cyclic number.

It is not a de Polignac number, because 1224520001 - 2² = 1224519997 is a prime.

It is not a weakly prime, because it can be changed into another prime (1224520007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612260000 + 612260001.

It is an arithmetic number, because the mean of its divisors is an integer number (612260001).

Almost surely, 2^1224520001 is an apocalyptic number.

It is an amenable number.

1224520001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224520001 is an equidigital number, since it uses as much as digits as its factorization.

1224520001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 1224520001 is about 34993.1421995796. The cubic root of 1224520001 is about 1069.8477091320.

Adding to 1224520001 its reverse (1000254221), we get a palindrome (2224774222).

The spelling of 1224520001 in words is "one billion, two hundred twenty-four million, five hundred twenty thousand, one".