1212212323222 has 8 divisors (see below), whose sum is σ = 1818323310672. Its totient is φ = 606104553000.

The previous prime is 1212212323207. The next prime is 1212212323249. The reversal of 1212212323222 is 2223232122121.

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

It is a super-2 number, since 2×1212212323222² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 701472 + ... + 1707772.

It is an arithmetic number, because the mean of its divisors is an integer number (227290413834).

Almost surely, 2^{1212212323222} is an apocalyptic number.

1212212323222 is a deficient number, since it is larger than the sum of its proper divisors (606110987450).

1212212323222 is a wasteful number, since it uses less digits than its factorization.

1212212323222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608614.

The product of its digits is 2304, while the sum is 25.

Adding to 1212212323222 its reverse (2223232122121), we get a palindrome (3435444445343).

The spelling of 1212212323222 in words is "one trillion, two hundred twelve billion, two hundred twelve million, three hundred twenty-three thousand, two hundred twenty-two".