10121034021 has 16 divisors (see below), whose sum is σ = 15566667264. Its totient is φ = 5729395824.

The previous prime is 10121034013. The next prime is 10121034041. The reversal of 10121034021 is 12043012101.

10121034021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10121034021 - 2³ = 10121034013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121034041) 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, 2249875 + ... + 2254368.

It is an arithmetic number, because the mean of its divisors is an integer number (972916704).

Almost surely, 2^10121034021 is an apocalyptic number.

It is an amenable number.

10121034021 is a deficient number, since it is larger than the sum of its proper divisors (5445633243).

10121034021 is a wasteful number, since it uses less digits than its factorization.

10121034021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4504360.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 10121034021 its reverse (12043012101), we get a palindrome (22164046122).

The spelling of 10121034021 in words is "ten billion, one hundred twenty-one million, thirty-four thousand, twenty-one".