20110102110121 has 32 divisors (see below), whose sum is σ = 20706981654528. Its totient is φ = 19523928821760.

The previous prime is 20110102110101. The next prime is 20110102110179. The reversal of 20110102110121 is 12101120101102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20110102110121 - 2²³ = 20110093721513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20110102110101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2289657696 + ... + 2289666478.

It is an arithmetic number, because the mean of its divisors is an integer number (647093176704).

Almost surely, 2^{20110102110121} is an apocalyptic number.

It is an amenable number.

20110102110121 is a deficient number, since it is larger than the sum of its proper divisors (596879544407).

20110102110121 is a wasteful number, since it uses less digits than its factorization.

20110102110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10501.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 20110102110121 its reverse (12101120101102), we get a palindrome (32211222211223).

The spelling of 20110102110121 in words is "twenty trillion, one hundred ten billion, one hundred two million, one hundred ten thousand, one hundred twenty-one".