131213023222 has 4 divisors (see below), whose sum is σ = 196819534836. Its totient is φ = 65606511610.

The previous prime is 131213023217. The next prime is 131213023231. The reversal of 131213023222 is 222320312131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 222320312131 = 43 ⋅5170239817.

It is a super-2 number, since 2×131213023222² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131213023193 and 131213023202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32803255804 + ... + 32803255807.

It is an arithmetic number, because the mean of its divisors is an integer number (49204883709).

Almost surely, 2^131213023222 is an apocalyptic number.

131213023222 is a deficient number, since it is larger than the sum of its proper divisors (65606511614).

131213023222 is an equidigital number, since it uses as much as digits as its factorization.

131213023222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65606511613.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 131213023222 its reverse (222320312131), we get a palindrome (353533335353).

The spelling of 131213023222 in words is "one hundred thirty-one billion, two hundred thirteen million, twenty-three thousand, two hundred twenty-two".