20121122222102 has 16 divisors (see below), whose sum is σ = 33251467510224. Its totient is φ = 9055410540000.

The previous prime is 20121122222051. The next prime is 20121122222137. The reversal of 20121122222102 is 20122222112102.

It is a congruent number.

It is an unprimeable number.

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, 4527703049 + ... + 4527707492.

It is an arithmetic number, because the mean of its divisors is an integer number (2078216719389).

Almost surely, 2^{20121122222102} is an apocalyptic number.

20121122222102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20121122222102 is a deficient number, since it is larger than the sum of its proper divisors (13130345288122).

20121122222102 is a wasteful number, since it uses less digits than its factorization.

20121122222102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9055410655.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 20121122222102 its reverse (20122222112102), we get a palindrome (40243344334204).

The spelling of 20121122222102 in words is "twenty trillion, one hundred twenty-one billion, one hundred twenty-two million, two hundred twenty-two thousand, one hundred two".