31003221220222 has 8 divisors (see below), whose sum is σ = 46512297707400. Its totient is φ = 15499121984424.

The previous prime is 31003221220093. The next prime is 31003221220267. The reversal of 31003221220222 is 22202212230013.

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

It is a super-2 number, since 2×31003221220222² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31003221220193 and 31003221220202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1244297272 + ... + 1244322187.

It is an arithmetic number, because the mean of its divisors is an integer number (5814037213425).

Almost surely, 2^{31003221220222} is an apocalyptic number.

31003221220222 is a deficient number, since it is larger than the sum of its proper divisors (15509076487178).

31003221220222 is a wasteful number, since it uses less digits than its factorization.

31003221220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2488625690.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 31003221220222 its reverse (22202212230013), we get a palindrome (53205433450235).

The spelling of 31003221220222 in words is "thirty-one trillion, three billion, two hundred twenty-one million, two hundred twenty thousand, two hundred twenty-two".