1212022222 has 8 divisors (see below), whose sum is σ = 1818231696. Its totient is φ = 605944992.

The previous prime is 1212022219. The next prime is 1212022223. The reversal of 1212022222 is 2222202121.

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

1212022222 is a modest number, since divided by 22222 gives 12120 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 1212022196 and 1212022205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212022223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5578 + ... + 49549.

It is an arithmetic number, because the mean of its divisors is an integer number (227278962).

Almost surely, 2^1212022222 is an apocalyptic number.

1212022222 is a deficient number, since it is larger than the sum of its proper divisors (606209474).

1212022222 is a wasteful number, since it uses less digits than its factorization.

1212022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66122.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1212022222 is about 34814.1095247315. The cubic root of 1212022222 is about 1066.1955384041.

Adding to 1212022222 its reverse (2222202121), we get a palindrome (3434224343).

The spelling of 1212022222 in words is "one billion, two hundred twelve million, twenty-two thousand, two hundred twenty-two".