1212166322 has 8 divisors (see below), whose sum is σ = 1818405936. Its totient is φ = 606031012.

The previous prime is 1212166303. The next prime is 1212166343. The reversal of 1212166322 is 2236612121.

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 = 1212166291 and 1212166300.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17633 + ... + 52299.

It is an arithmetic number, because the mean of its divisors is an integer number (227300742).

Almost surely, 2^1212166322 is an apocalyptic number.

1212166322 is a deficient number, since it is larger than the sum of its proper divisors (606239614).

1212166322 is a wasteful number, since it uses less digits than its factorization.

1212166322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52152.

The product of its digits is 1728, while the sum is 26.

The square root of 1212166322 is about 34816.1790264239. The cubic root of 1212166322 is about 1066.2377908441.

Adding to 1212166322 its reverse (2236612121), we get a palindrome (3448778443).

The spelling of 1212166322 in words is "one billion, two hundred twelve million, one hundred sixty-six thousand, three hundred twenty-two".