3131323031222 has 8 divisors (see below), whose sum is σ = 4848500177472. Its totient is φ = 1515156305400.

The previous prime is 3131323031203. The next prime is 3131323031233. The reversal of 3131323031222 is 2221303231313.

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

It is a super-2 number, since 2×3131323031222² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3131323031191 and 3131323031200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25252605029 + ... + 25252605152.

It is an arithmetic number, because the mean of its divisors is an integer number (606062522184).

Almost surely, 2^{3131323031222} is an apocalyptic number.

3131323031222 is a deficient number, since it is larger than the sum of its proper divisors (1717177146250).

3131323031222 is a wasteful number, since it uses less digits than its factorization.

3131323031222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50505210214.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 3131323031222 its reverse (2221303231313), we get a palindrome (5352626262535).

The spelling of 3131323031222 in words is "three trillion, one hundred thirty-one billion, three hundred twenty-three million, thirty-one thousand, two hundred twenty-two".