31112022030220 has 24 divisors (see below), whose sum is σ = 65341625220144. Its totient is φ = 12443593772736.

The previous prime is 31112022030211. The next prime is 31112022030223. The reversal of 31112022030220 is 2203022021113.

It is a super-2 number, since 2×31112022030220² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31112022030223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75729979 + ... + 76139698.

It is an arithmetic number, because the mean of its divisors is an integer number (2722567717506).

Almost surely, 2^{31112022030220} is an apocalyptic number.

It is an amenable number.

31112022030220 is an abundant number, since it is smaller than the sum of its proper divisors (34229603189924).

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

31112022030220 is a wasteful number, since it uses less digits than its factorization.

31112022030220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151879929 (or 151879927 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 31112022030220 its reverse (2203022021113), we get a palindrome (33315044051333).

The spelling of 31112022030220 in words is "thirty-one trillion, one hundred twelve billion, twenty-two million, thirty thousand, two hundred twenty".