122220343412 has 6 divisors (see below), whose sum is σ = 213885600978. Its totient is φ = 61110171704.

The previous prime is 122220343409. The next prime is 122220343417. The reversal of 122220343412 is 214343022221.

It can be written as a sum of positive squares in only one way, i.e., 110259858916 + 11960484496 = 332054^2 + 109364^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122220343417) 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 as a sum of consecutive naturals, namely, 15277542923 + ... + 15277542930.

It is an arithmetic number, because the mean of its divisors is an integer number (35647600163).

Almost surely, 2^122220343412 is an apocalyptic number.

It is an amenable number.

122220343412 is a deficient number, since it is larger than the sum of its proper divisors (91665257566).

122220343412 is a wasteful number, since it uses less digits than its factorization.

122220343412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30555085857 (or 30555085855 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 122220343412 its reverse (214343022221), we get a palindrome (336563365633).

The spelling of 122220343412 in words is "one hundred twenty-two billion, two hundred twenty million, three hundred forty-three thousand, four hundred twelve".