21033233012 has 72 divisors (see below), whose sum is σ = 41409688320. Its totient is φ = 9336712000.

The previous prime is 21033232999. The next prime is 21033233021.

21033233012 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15945689 + ... + 15947007.

It is an arithmetic number, because the mean of its divisors is an integer number (575134560).

Almost surely, 2^21033233012 is an apocalyptic number.

21033233012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21033233012 is a deficient number, since it is larger than the sum of its proper divisors (20376455308).

21033233012 is a wasteful number, since it uses less digits than its factorization.

21033233012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2093 (or 2080 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The spelling of 21033233012 in words is "twenty-one billion, thirty-three million, two hundred thirty-three thousand, twelve".