10121221033 has 16 divisors (see below), whose sum is σ = 12665600640. Its totient is φ = 7857331200.

The previous prime is 10121221013. The next prime is 10121221049. The reversal of 10121221033 is 33012212101.

10121221033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10121221033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10121220998 and 10121221016.

It is not an unprimeable number, because it can be changed into a prime (10121221003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223608 + ... + 265033.

It is an arithmetic number, because the mean of its divisors is an integer number (791600040).

Almost surely, 2^10121221033 is an apocalyptic number.

It is an amenable number.

10121221033 is a deficient number, since it is larger than the sum of its proper divisors (2544379607).

10121221033 is a wasteful number, since it uses less digits than its factorization.

10121221033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488928.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 10121221033 its reverse (33012212101), we get a palindrome (43133433134).

The spelling of 10121221033 in words is "ten billion, one hundred twenty-one million, two hundred twenty-one thousand, thirty-three".