1212212120102 has 16 divisors (see below), whose sum is σ = 1846582250352. Its totient is φ = 596749455360.

The previous prime is 1212212120069. The next prime is 1212212120107. The reversal of 1212212120102 is 2010212122121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212212120107) 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 7 ways as a sum of consecutive naturals, for example, 16150424 + ... + 16225307.

It is an arithmetic number, because the mean of its divisors is an integer number (115411390647).

Almost surely, 2^{1212212120102} is an apocalyptic number.

1212212120102 is a deficient number, since it is larger than the sum of its proper divisors (634370130250).

1212212120102 is a wasteful number, since it uses less digits than its factorization.

1212212120102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32376023.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1212212120102 its reverse (2010212122121), we get a palindrome (3222424242223).

It can be divided in two parts, 12122121 and 20102, that multiplied together give a palindrome (243678876342).

The spelling of 1212212120102 in words is "one trillion, two hundred twelve billion, two hundred twelve million, one hundred twenty thousand, one hundred two".