1212020210122 has 32 divisors (see below), whose sum is σ = 1848435567552. Its totient is φ = 595945918464.

The previous prime is 1212020210111. The next prime is 1212020210129. The reversal of 1212020210122 is 2210120202121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1212020210096 and 1212020210105.

It is not an unprimeable number, because it can be changed into a prime (1212020210129) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 63258168 + ... + 63277324.

It is an arithmetic number, because the mean of its divisors is an integer number (57763611486).

Almost surely, 2^{1212020210122} is an apocalyptic number.

1212020210122 is a deficient number, since it is larger than the sum of its proper divisors (636415357430).

1212020210122 is a wasteful number, since it uses less digits than its factorization.

1212020210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20982.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1212020210122 its reverse (2210120202121), we get a palindrome (3422140412243).

The spelling of 1212020210122 in words is "one trillion, two hundred twelve billion, twenty million, two hundred ten thousand, one hundred twenty-two".