20110102012121 has 8 divisors (see below), whose sum is σ = 21938357810304. Its totient is φ = 18281856998320.

The previous prime is 20110102012093. The next prime is 20110102012277. The reversal of 20110102012121 is 12121020101102.

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

It is a cyclic number.

It is not a de Polignac number, because 20110102012121 - 2⁴² = 15712055501017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20110102012096 and 20110102012105.

It is not an unprimeable number, because it can be changed into a prime (20110102012321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1484816 + ... + 6513438.

It is an arithmetic number, because the mean of its divisors is an integer number (2742294726288).

Almost surely, 2^{20110102012121} is an apocalyptic number.

It is an amenable number.

20110102012121 is a deficient number, since it is larger than the sum of its proper divisors (1828255798183).

20110102012121 is a wasteful number, since it uses less digits than its factorization.

20110102012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5392191.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20110102012121 its reverse (12121020101102), we get a palindrome (32231122113223).

The spelling of 20110102012121 in words is "twenty trillion, one hundred ten billion, one hundred two million, twelve thousand, one hundred twenty-one".