20121103122 has 8 divisors (see below), whose sum is σ = 40242206256. Its totient is φ = 6707034372.

The previous prime is 20121103109. The next prime is 20121103127. The reversal of 20121103122 is 22130112102.

It is a sphenic number, since it is the product of 3 distinct primes.

20121103122 is an admirable number.

It is a super-3 number, since 3×20121103122³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20121103127) 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 3 ways as a sum of consecutive naturals, for example, 1676758588 + ... + 1676758599.

It is an arithmetic number, because the mean of its divisors is an integer number (5030275782).

Almost surely, 2^20121103122 is an apocalyptic number.

20121103122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20121103122 is a wasteful number, since it uses less digits than its factorization.

20121103122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3353517192.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20121103122 its reverse (22130112102), we get a palindrome (42251215224).

The spelling of 20121103122 in words is "twenty billion, one hundred twenty-one million, one hundred three thousand, one hundred twenty-two".