1224125501 has 8 divisors (see below), whose sum is σ = 1258224384. Its totient is φ = 1190080080.

The previous prime is 1224125473. The next prime is 1224125503. The reversal of 1224125501 is 1055214221.

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 1224125501 - 2⁶ = 1224125437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224125503) 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, 35516 + ... + 60906.

It is an arithmetic number, because the mean of its divisors is an integer number (157278048).

Almost surely, 2^1224125501 is an apocalyptic number.

It is an amenable number.

1224125501 is a deficient number, since it is larger than the sum of its proper divisors (34098883).

1224125501 is a wasteful number, since it uses less digits than its factorization.

1224125501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26731.

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

The square root of 1224125501 is about 34987.5049267592. The cubic root of 1224125501 is about 1069.7328068973.

Adding to 1224125501 its reverse (1055214221), we get a palindrome (2279339722).

The spelling of 1224125501 in words is "one billion, two hundred twenty-four million, one hundred twenty-five thousand, five hundred one".