2221123124403 has 24 divisors (see below), whose sum is σ = 3273045405968. Its totient is φ = 1451090184192.

The previous prime is 2221123124371. The next prime is 2221123124411. The reversal of 2221123124403 is 3044213211222.

2221123124403 is a `hidden beast` number, since 2 + 2 + 2 + 1 + 1 + 231 + 24 + 403 = 666.

It is not a de Polignac number, because 2221123124403 - 2⁵ = 2221123124371 is a prime.

It is a super-2 number, since 2×2221123124403² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221123124413) 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 23 ways as a sum of consecutive naturals, for example, 9426250 + ... + 9659007.

Almost surely, 2^{2221123124403} is an apocalyptic number.

2221123124403 is a deficient number, since it is larger than the sum of its proper divisors (1051922281565).

2221123124403 is a wasteful number, since it uses less digits than its factorization.

2221123124403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19085523 (or 19085520 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 2221123124403 its reverse (3044213211222), we get a palindrome (5265336335625).

The spelling of 2221123124403 in words is "two trillion, two hundred twenty-one billion, one hundred twenty-three million, one hundred twenty-four thousand, four hundred three".