31212102213122 has 8 divisors (see below), whose sum is σ = 47272698497856. Its totient is φ = 15454536047172.

The previous prime is 31212102213109. The next prime is 31212102213137. The reversal of 31212102213122 is 22131220121213.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75757529438 + ... + 75757529849.

It is an arithmetic number, because the mean of its divisors is an integer number (5909087312232).

Almost surely, 2^{31212102213122} is an apocalyptic number.

31212102213122 is a deficient number, since it is larger than the sum of its proper divisors (16060596284734).

31212102213122 is a wasteful number, since it uses less digits than its factorization.

31212102213122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151515059392.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 31212102213122 its reverse (22131220121213), we get a palindrome (53343322334335).

The spelling of 31212102213122 in words is "thirty-one trillion, two hundred twelve billion, one hundred two million, two hundred thirteen thousand, one hundred twenty-two".