31331222012002 has 8 divisors (see below), whose sum is σ = 51269272383312. Its totient is φ = 14241464550900.

The previous prime is 31331222011997. The next prime is 31331222012003. The reversal of 31331222012002 is 20021022213313.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 1424146455091 = 31331222012002 / (3 + 1 + 3 + 3 + 1 + 2 + 2 + 2 + 0 + 1 + 2 + 0 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (31331222012003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 712073227524 + ... + 712073227567.

It is an arithmetic number, because the mean of its divisors is an integer number (6408659047914).

Almost surely, 2^{31331222012002} is an apocalyptic number.

31331222012002 is a deficient number, since it is larger than the sum of its proper divisors (19938050371310).

31331222012002 is a wasteful number, since it uses less digits than its factorization.

31331222012002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424146455104.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31331222012002 its reverse (20021022213313), we get a palindrome (51352244225315).

The spelling of 31331222012002 in words is "thirty-one trillion, three hundred thirty-one billion, two hundred twenty-two million, twelve thousand, two".