10110020121 has 12 divisors (see below), whose sum is σ = 14942976048. Its totient is φ = 6583268664.

The previous prime is 10110020077. The next prime is 10110020143. The reversal of 10110020121 is 12102001101.

It is a happy number.

It is not a de Polignac number, because 10110020121 - 2⁹ = 10110019609 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (10110020521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13061655 + ... + 13062428.

It is an arithmetic number, because the mean of its divisors is an integer number (1245248004).

Almost surely, 2^10110020121 is an apocalyptic number.

It is an amenable number.

10110020121 is a deficient number, since it is larger than the sum of its proper divisors (4832955927).

10110020121 is a wasteful number, since it uses less digits than its factorization.

10110020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26124132 (or 26124129 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 10110020121 its reverse (12102001101), we get a palindrome (22212021222).

The spelling of 10110020121 in words is "ten billion, one hundred ten million, twenty thousand, one hundred twenty-one".