31122220410212 has 48 divisors (see below), whose sum is σ = 54987251020800. Its totient is φ = 15412312000800.

The previous prime is 31122220410181. The next prime is 31122220410217. The reversal of 31122220410212 is 21201402222113.

It is not an unprimeable number, because it can be changed into a prime (31122220410217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1946225537 + ... + 1946241527.

It is an arithmetic number, because the mean of its divisors is an integer number (1145567729600).

Almost surely, 2^{31122220410212} is an apocalyptic number.

It is an amenable number.

31122220410212 is a deficient number, since it is larger than the sum of its proper divisors (23865030610588).

31122220410212 is a wasteful number, since it uses less digits than its factorization.

31122220410212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27192 (or 27190 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 31122220410212 its reverse (21201402222113), we get a palindrome (52323622632325).

The spelling of 31122220410212 in words is "thirty-one trillion, one hundred twenty-two billion, two hundred twenty million, four hundred ten thousand, two hundred twelve".