31133210202212 has 24 divisors (see below), whose sum is σ = 54538896409536. Its totient is φ = 15550673791968.

The previous prime is 31133210202197. The next prime is 31133210202233. The reversal of 31133210202212 is 21220201233113.

It is a super-3 number, since 3×31133210202212³ (a number of 41 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22397843 + ... + 23747205.

It is an arithmetic number, because the mean of its divisors is an integer number (2272454017064).

Almost surely, 2^{31133210202212} is an apocalyptic number.

It is an amenable number.

31133210202212 is a deficient number, since it is larger than the sum of its proper divisors (23405686207324).

31133210202212 is a wasteful number, since it uses less digits than its factorization.

31133210202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355267 (or 1355265 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 31133210202212 its reverse (21220201233113), we get a palindrome (52353411435325).

The spelling of 31133210202212 in words is "thirty-one trillion, one hundred thirty-three billion, two hundred ten million, two hundred two thousand, two hundred twelve".