124501221 has 24 divisors (see below), whose sum is σ = 195170976. Its totient is φ = 76021920.

The previous prime is 124501219. The next prime is 124501229. The reversal of 124501221 is 122105421.

It is not a de Polignac number, because 124501221 - 2¹ = 124501219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 124501194 and 124501203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124501229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11266 + ... + 19388.

It is an arithmetic number, because the mean of its divisors is an integer number (8132124).

Almost surely, 2^124501221 is an apocalyptic number.

It is an amenable number.

124501221 is a deficient number, since it is larger than the sum of its proper divisors (70669755).

124501221 is a wasteful number, since it uses less digits than its factorization.

124501221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8273 (or 8270 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 124501221 is about 11158.0115163948. The cubic root of 124501221 is about 499.3340748144.

Adding to 124501221 its reverse (122105421), we get a palindrome (246606642).

The spelling of 124501221 in words is "one hundred twenty-four million, five hundred one thousand, two hundred twenty-one".