10131221223 has 24 divisors (see below), whose sum is σ = 14705721888. Its totient is φ = 6721123392.

The previous prime is 10131221207. The next prime is 10131221231. The reversal of 10131221223 is 32212213101.

It is not a de Polignac number, because 10131221223 - 2⁴ = 10131221207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10131221196 and 10131221205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10131221273) 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, 1631761 + ... + 1637957.

It is an arithmetic number, because the mean of its divisors is an integer number (612738412).

Almost surely, 2^10131221223 is an apocalyptic number.

10131221223 is a deficient number, since it is larger than the sum of its proper divisors (4574500665).

10131221223 is a wasteful number, since it uses less digits than its factorization.

10131221223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7063 (or 7060 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 10131221223 its reverse (32212213101), we get a palindrome (42343434324).

The spelling of 10131221223 in words is "ten billion, one hundred thirty-one million, two hundred twenty-one thousand, two hundred twenty-three".