21033444433012 has 96 divisors (see below), whose sum is σ = 44509882475520. Its totient is φ = 8578997982720.

The previous prime is 21033444432997. The next prime is 21033444433019.

21033444433012 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21033444433019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3290439 + ... + 7272817.

It is an arithmetic number, because the mean of its divisors is an integer number (463644609120).

Almost surely, 2^{21033444433012} is an apocalyptic number.

21033444433012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21033444433012 is an abundant number, since it is smaller than the sum of its proper divisors (23476438042508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21033444433012 is a wasteful number, since it uses less digits than its factorization.

21033444433012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3982741 (or 3982739 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 34.

It can be divided in two parts, 2103344 and 4433012, that added together give a palindrome (6536356).

The spelling of 21033444433012 in words is "twenty-one trillion, thirty-three billion, four hundred forty-four million, four hundred thirty-three thousand, twelve".