13131400231222 has 32 divisors (see below), whose sum is σ = 24243459432192. Its totient is φ = 5194652282784.

The previous prime is 13131400231211. The next prime is 13131400231253. The reversal of 13131400231222 is 22213200413131.

It is a super-2 number, since 2×13131400231222² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3813753 + ... + 6388075.

It is an arithmetic number, because the mean of its divisors is an integer number (757608107256).

Almost surely, 2^{13131400231222} is an apocalyptic number.

13131400231222 is a deficient number, since it is larger than the sum of its proper divisors (11112059200970).

13131400231222 is a wasteful number, since it uses less digits than its factorization.

13131400231222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2602372.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 13131400231222 its reverse (22213200413131), we get a palindrome (35344600644353).

The spelling of 13131400231222 in words is "thirteen trillion, one hundred thirty-one billion, four hundred million, two hundred thirty-one thousand, two hundred twenty-two".