20121211120102 has 16 divisors (see below), whose sum is σ = 30616835434560. Its totient is φ = 9916040729088.

The previous prime is 20121211120037. The next prime is 20121211120111. The reversal of 20121211120102 is 20102111212102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110263633 + ... + 110445964.

It is an arithmetic number, because the mean of its divisors is an integer number (1913552214660).

Almost surely, 2^{20121211120102} is an apocalyptic number.

20121211120102 is a deficient number, since it is larger than the sum of its proper divisors (10495624314458).

20121211120102 is a wasteful number, since it uses less digits than its factorization.

20121211120102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220710255.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20121211120102 its reverse (20102111212102), we get a palindrome (40223322332204).

The spelling of 20121211120102 in words is "twenty trillion, one hundred twenty-one billion, two hundred eleven million, one hundred twenty thousand, one hundred two".