31212450022 has 8 divisors (see below), whose sum is σ = 50420111616. Its totient is φ = 14405746152.

The previous prime is 31212450019. The next prime is 31212450023. The reversal of 31212450022 is 22005421213.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 31212449975 and 31212450002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31212450023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600239398 + ... + 600239449.

It is an arithmetic number, because the mean of its divisors is an integer number (6302513952).

Almost surely, 2^31212450022 is an apocalyptic number.

31212450022 is a deficient number, since it is larger than the sum of its proper divisors (19207661594).

31212450022 is a wasteful number, since it uses less digits than its factorization.

31212450022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200478862.

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 31212450022 its reverse (22005421213), we get a palindrome (53217871235).

The spelling of 31212450022 in words is "thirty-one billion, two hundred twelve million, four hundred fifty thousand, twenty-two".