31000122022 has 8 divisors (see below), whose sum is σ = 46699755336. Its totient is φ = 15433536912.

The previous prime is 31000121983. The next prime is 31000122029. The reversal of 31000122022 is 22022100013.

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

It is a super-2 number, since 2×31000122022² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31000121993 and 31000122011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31000122029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33261468 + ... + 33262399.

It is an arithmetic number, because the mean of its divisors is an integer number (5837469417).

Almost surely, 2^31000122022 is an apocalyptic number.

31000122022 is a deficient number, since it is larger than the sum of its proper divisors (15699633314).

31000122022 is a wasteful number, since it uses less digits than its factorization.

31000122022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66524102.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 31000122022 its reverse (22022100013), we get a palindrome (53022222035).

The spelling of 31000122022 in words is "thirty-one billion, one hundred twenty-two thousand, twenty-two".