31004222222 has 8 divisors (see below), whose sum is σ = 47640634272. Its totient is φ = 15124010800.

The previous prime is 31004222213. The next prime is 31004222233. The reversal of 31004222222 is 22222240013.

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

It is a super-2 number, since 2×31004222222² (a number of 22 digits) contains 22 as substring.

31004222222 is a modest number, since divided by 222222 gives 31004 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 31004222194 and 31004222203.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 189050054 + ... + 189050217.

It is an arithmetic number, because the mean of its divisors is an integer number (5955079284).

Almost surely, 2^31004222222 is an apocalyptic number.

31004222222 is a deficient number, since it is larger than the sum of its proper divisors (16636412050).

31004222222 is a wasteful number, since it uses less digits than its factorization.

31004222222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378100314.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 31004222222 its reverse (22222240013), we get a palindrome (53226462235).

The spelling of 31004222222 in words is "thirty-one billion, four million, two hundred twenty-two thousand, two hundred twenty-two".