221223131403 has 8 divisors (see below), whose sum is σ = 295006650000. Its totient is φ = 147460850208.

The previous prime is 221223131369. The next prime is 221223131411. The reversal of 221223131403 is 304131322122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 221223131403 - 2¹⁷ = 221223000331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221223131413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5285028 + ... + 5326721.

It is an arithmetic number, because the mean of its divisors is an integer number (36875831250).

Almost surely, 2^221223131403 is an apocalyptic number.

221223131403 is a deficient number, since it is larger than the sum of its proper divisors (73783518597).

221223131403 is a wasteful number, since it uses less digits than its factorization.

221223131403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10618701.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 221223131403 its reverse (304131322122), we get a palindrome (525354453525).

The spelling of 221223131403 in words is "two hundred twenty-one billion, two hundred twenty-three million, one hundred thirty-one thousand, four hundred three".