31322121022002 has 16 divisors (see below), whose sum is σ = 62768783286720. Its totient is φ = 10419950133552.

The previous prime is 31322121021959. The next prime is 31322121022007. The reversal of 31322121022002 is 20022012122313.

It is a super-2 number, since 2×31322121022002² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31322121022002.

It is not an unprimeable number, because it can be changed into a prime (31322121022007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5189215177 + ... + 5189221212.

It is an arithmetic number, because the mean of its divisors is an integer number (3923048955420).

Almost surely, 2^{31322121022002} is an apocalyptic number.

31322121022002 is an abundant number, since it is smaller than the sum of its proper divisors (31446662264718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31322121022002 is a wasteful number, since it uses less digits than its factorization.

31322121022002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10378436897.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 31322121022002 its reverse (20022012122313), we get a palindrome (51344133144315).

The spelling of 31322121022002 in words is "thirty-one trillion, three hundred twenty-two billion, one hundred twenty-one million, twenty-two thousand, two".