10011121002121 has 16 divisors (see below), whose sum is σ = 11061448819200. Its totient is φ = 9012106211328.

The previous prime is 10011121002037. The next prime is 10011121002133. The reversal of 10011121002121 is 12120012111001.

It is a happy number.

10011121002121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-10011121002121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10011121002151) 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, 7077865 + ... + 8373673.

It is an arithmetic number, because the mean of its divisors is an integer number (691340551200).

Almost surely, 2^{10011121002121} is an apocalyptic number.

It is an amenable number.

10011121002121 is a deficient number, since it is larger than the sum of its proper divisors (1050327817079).

10011121002121 is a wasteful number, since it uses less digits than its factorization.

10011121002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315608.

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

Adding to 10011121002121 its reverse (12120012111001), we get a palindrome (22131133113122).

The spelling of 10011121002121 in words is "ten trillion, eleven billion, one hundred twenty-one million, two thousand, one hundred twenty-one".