31344100002222 has 64 divisors (see below), whose sum is σ = 75906402324480. Its totient is φ = 8423286391296.

The previous prime is 31344100002209. The next prime is 31344100002223. The reversal of 31344100002222 is 22220000144313.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31344100002192 and 31344100002201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31344100002223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12888597 + ... + 15126272.

It is an arithmetic number, because the mean of its divisors is an integer number (1186037536320).

Almost surely, 2^{31344100002222} is an apocalyptic number.

31344100002222 is an abundant number, since it is smaller than the sum of its proper divisors (44562302322258).

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

31344100002222 is a wasteful number, since it uses less digits than its factorization.

31344100002222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28016465.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 31344100002222 its reverse (22220000144313), we get a palindrome (53564100146535).

The spelling of 31344100002222 in words is "thirty-one trillion, three hundred forty-four billion, one hundred million, two thousand, two hundred twenty-two".