31222123030330 has 16 divisors (see below), whose sum is σ = 56208718168200. Its totient is φ = 12486872164672.

The previous prime is 31222123030313. The next prime is 31222123030331. The reversal of 31222123030330 is 3303032122213.

It can be written as a sum of positive squares in 4 ways, for example, as 27002167642321 + 4219955388009 = 5196361^2 + 2054253^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31222123030295 and 31222123030304.

It is not an unprimeable number, because it can be changed into a prime (31222123030331) 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, 247064605 + ... + 247190944.

Almost surely, 2^{31222123030330} is an apocalyptic number.

31222123030330 is a deficient number, since it is larger than the sum of its proper divisors (24986595137870).

31222123030330 is a wasteful number, since it uses less digits than its factorization.

31222123030330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494261873.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 31222123030330 its reverse (3303032122213), we get a palindrome (34525155152543).

The spelling of 31222123030330 in words is "thirty-one trillion, two hundred twenty-two billion, one hundred twenty-three million, thirty thousand, three hundred thirty".