20110010112121 has 16 divisors (see below), whose sum is σ = 20731717609920. Its totient is φ = 19497683197440.

The previous prime is 20110010112091. The next prime is 20110010112139. The reversal of 20110010112121 is 12121101001102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20110010112121 - 2¹⁷ = 20110009981049 is a prime.

It is a super-2 number, since 2×20110010112121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20110010112161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164987626 + ... + 165109468.

It is an arithmetic number, because the mean of its divisors is an integer number (1295732350620).

Almost surely, 2^{20110010112121} is an apocalyptic number.

It is an amenable number.

20110010112121 is a deficient number, since it is larger than the sum of its proper divisors (621707497799).

20110010112121 is a wasteful number, since it uses less digits than its factorization.

20110010112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160296.

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

Adding to 20110010112121 its reverse (12121101001102), we get a palindrome (32231111113223).

The spelling of 20110010112121 in words is "twenty trillion, one hundred ten billion, ten million, one hundred twelve thousand, one hundred twenty-one".