20110121210122 has 8 divisors (see below), whose sum is σ = 30316765644000. Its totient is φ = 10004532662124.

The previous prime is 20110121210111. The next prime is 20110121210141. The reversal of 20110121210122 is 22101212101102.

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

It is a junction number, because it is equal to n+sod(n) for n = 20110121210096 and 20110121210105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25263970972 + ... + 25263971767.

It is an arithmetic number, because the mean of its divisors is an integer number (3789595705500).

Almost surely, 2^{20110121210122} is an apocalyptic number.

20110121210122 is a deficient number, since it is larger than the sum of its proper divisors (10206644433878).

20110121210122 is a wasteful number, since it uses less digits than its factorization.

20110121210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50527942940.

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

Adding to 20110121210122 its reverse (22101212101102), we get a palindrome (42211333311224).

The spelling of 20110121210122 in words is "twenty trillion, one hundred ten billion, one hundred twenty-one million, two hundred ten thousand, one hundred twenty-two".