21120033301 has 4 divisors (see below), whose sum is σ = 21325082272. Its totient is φ = 20914984332.

The previous prime is 21120033289. The next prime is 21120033329. The reversal of 21120033301 is 10333002112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21120033301 - 2⁵ = 21120033269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21120033371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102524331 + ... + 102524536.

It is an arithmetic number, because the mean of its divisors is an integer number (5331270568).

Almost surely, 2^21120033301 is an apocalyptic number.

It is an amenable number.

21120033301 is a deficient number, since it is larger than the sum of its proper divisors (205048971).

21120033301 is a wasteful number, since it uses less digits than its factorization.

21120033301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205048970.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 21120033301 its reverse (10333002112), we get a palindrome (31453035413).

The spelling of 21120033301 in words is "twenty-one billion, one hundred twenty million, thirty-three thousand, three hundred one".