124221006321 has 16 divisors (see below), whose sum is σ = 167843932800. Its totient is φ = 81713404800.

The previous prime is 124221006317. The next prime is 124221006341. The reversal of 124221006321 is 123600122421.

It is not a de Polignac number, because 124221006321 - 2² = 124221006317 is a prime.

It is a super-2 number, since 2×124221006321² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 124221006291 and 124221006300.

It is not an unprimeable number, because it can be changed into a prime (124221006341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 852700 + ... + 987693.

It is an arithmetic number, because the mean of its divisors is an integer number (10490245800).

Almost surely, 2^124221006321 is an apocalyptic number.

It is an amenable number.

124221006321 is a deficient number, since it is larger than the sum of its proper divisors (43622926479).

124221006321 is a wasteful number, since it uses less digits than its factorization.

124221006321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840696.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 124221006321 its reverse (123600122421), we get a palindrome (247821128742).

The spelling of 124221006321 in words is "one hundred twenty-four billion, two hundred twenty-one million, six thousand, three hundred twenty-one".