21233301121 has 8 divisors (see below), whose sum is σ = 22488606504. Its totient is φ = 19978694400.

The previous prime is 21233301101. The next prime is 21233301127. The reversal of 21233301121 is 12110333212.

It can be written as a sum of positive squares in 4 ways, for example, as 824321521 + 20408979600 = 28711^2 + 142860^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21233301121 - 2⁷ = 21233300993 is a prime.

It is a super-3 number, since 3×21233301121³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21233301127) 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 7 ways as a sum of consecutive naturals, for example, 111430 + ... + 234271.

It is an arithmetic number, because the mean of its divisors is an integer number (2811075813).

Almost surely, 2^21233301121 is an apocalyptic number.

It is an amenable number.

21233301121 is a deficient number, since it is larger than the sum of its proper divisors (1255305383).

21233301121 is a wasteful number, since it uses less digits than its factorization.

21233301121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349331.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21233301121 its reverse (12110333212), we get a palindrome (33343634333).

The spelling of 21233301121 in words is "twenty-one billion, two hundred thirty-three million, three hundred one thousand, one hundred twenty-one".