31030332120222 has 32 divisors (see below), whose sum is σ = 62131003958400. Its totient is φ = 10331725164768.

The previous prime is 31030332120167. The next prime is 31030332120247. The reversal of 31030332120222 is 22202123303013.

It is a super-2 number, since 2×31030332120222² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31030332120192 and 31030332120201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27727029 + ... + 28824447.

It is an arithmetic number, because the mean of its divisors is an integer number (1941593873700).

Almost surely, 2^{31030332120222} is an apocalyptic number.

31030332120222 is an abundant number, since it is smaller than the sum of its proper divisors (31100671838178).

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

31030332120222 is a wasteful number, since it uses less digits than its factorization.

31030332120222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102760.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 31030332120222 its reverse (22202123303013), we get a palindrome (53232455423235).

The spelling of 31030332120222 in words is "thirty-one trillion, thirty billion, three hundred thirty-two million, one hundred twenty thousand, two hundred twenty-two".