131223002222 has 32 divisors (see below), whose sum is σ = 213736320000. Its totient is φ = 60061817088.

The previous prime is 131223002203. The next prime is 131223002243. The reversal of 131223002222 is 222200322131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 131223002194 and 131223002203.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9202154 + ... + 9216402.

It is an arithmetic number, because the mean of its divisors is an integer number (6679260000).

Almost surely, 2^131223002222 is an apocalyptic number.

131223002222 is a deficient number, since it is larger than the sum of its proper divisors (82513317778).

131223002222 is a wasteful number, since it uses less digits than its factorization.

131223002222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17180.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 131223002222 its reverse (222200322131), we get a palindrome (353423324353).

The spelling of 131223002222 in words is "one hundred thirty-one billion, two hundred twenty-three million, two thousand, two hundred twenty-two".