31022211231212 has 12 divisors (see below), whose sum is σ = 54290342312976. Its totient is φ = 15510684856080.

The previous prime is 31022211231169. The next prime is 31022211231233. The reversal of 31022211231212 is 21213211222013.

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, 105023963 + ... + 105318930.

It is an arithmetic number, because the mean of its divisors is an integer number (4524195192748).

Almost surely, 2^{31022211231212} is an apocalyptic number.

It is an amenable number.

31022211231212 is a deficient number, since it is larger than the sum of its proper divisors (23268131081764).

31022211231212 is a wasteful number, since it uses less digits than its factorization.

31022211231212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210379768 (or 210379766 counting only the distinct ones).

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

Adding to 31022211231212 its reverse (21213211222013), we get a palindrome (52235422453225).

The spelling of 31022211231212 in words is "thirty-one trillion, twenty-two billion, two hundred eleven million, two hundred thirty-one thousand, two hundred twelve".