31221222098 has 8 divisors (see below), whose sum is σ = 51089272560. Its totient is φ = 14191464580.

The previous prime is 31221222049. The next prime is 31221222127. The reversal of 31221222098 is 89022212213.

It is a happy number.

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

It is an unprimeable number.

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, 709573208 + ... + 709573251.

It is an arithmetic number, because the mean of its divisors is an integer number (6386159070).

Almost surely, 2^31221222098 is an apocalyptic number.

31221222098 is a deficient number, since it is larger than the sum of its proper divisors (19868050462).

31221222098 is a wasteful number, since it uses less digits than its factorization.

31221222098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419146472.

The product of its (nonzero) digits is 6912, while the sum is 32.

The spelling of 31221222098 in words is "thirty-one billion, two hundred twenty-one million, two hundred twenty-two thousand, ninety-eight".