21011010032233 has 8 divisors (see below), whose sum is σ = 22627605486528. Its totient is φ = 19394466565584.

The previous prime is 21011010032231. The next prime is 21011010032237. The reversal of 21011010032233 is 33223001011012.

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 21011010032233 - 2¹ = 21011010032231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21011010032233.

It is not an unprimeable number, because it can be changed into a prime (21011010032231) 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, 12155491 + ... + 13775992.

It is an arithmetic number, because the mean of its divisors is an integer number (2828450685816).

Almost surely, 2^{21011010032233} is an apocalyptic number.

It is an amenable number.

21011010032233 is a deficient number, since it is larger than the sum of its proper divisors (1616595454295).

21011010032233 is a wasteful number, since it uses less digits than its factorization.

21011010032233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25993823.

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

Adding to 21011010032233 its reverse (33223001011012), we get a palindrome (54234011043245).

The spelling of 21011010032233 in words is "twenty-one trillion, eleven billion, ten million, thirty-two thousand, two hundred thirty-three".