31012132313222 has 8 divisors (see below), whose sum is σ = 47212499939736. Its totient is φ = 15274632333312.

The previous prime is 31012132313177. The next prime is 31012132313243. The reversal of 31012132313222 is 22231323121013.

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

It is a super-2 number, since 2×31012132313222² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31012132313191 and 31012132313200.

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, 115716911483 + ... + 115716911750.

It is an arithmetic number, because the mean of its divisors is an integer number (5901562492467).

Almost surely, 2^{31012132313222} is an apocalyptic number.

31012132313222 is a deficient number, since it is larger than the sum of its proper divisors (16200367626514).

31012132313222 is a wasteful number, since it uses less digits than its factorization.

31012132313222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231433823302.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 31012132313222 its reverse (22231323121013), we get a palindrome (53243455434235).

The spelling of 31012132313222 in words is "thirty-one trillion, twelve billion, one hundred thirty-two million, three hundred thirteen thousand, two hundred twenty-two".