21033002223200 has 144 divisors (see below), whose sum is σ = 57206512548864. Its totient is φ = 7485633139200.

The previous prime is 21033002223169. The next prime is 21033002223217. The reversal of 21033002223200 is 232220033012.

It is a super-2 number, since 2×21033002223200² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25013144 + ... + 25840343.

It is an arithmetic number, because the mean of its divisors is an integer number (397267448256).

Almost surely, 2^{21033002223200} is an apocalyptic number.

21033002223200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21033002223200 is an abundant number, since it is smaller than the sum of its proper divisors (36173510325664).

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

21033002223200 is a wasteful number, since it uses less digits than its factorization.

21033002223200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50853565 (or 50853552 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 21033002223200 its reverse (232220033012), we get a palindrome (21265222256212).

The spelling of 21033002223200 in words is "twenty-one trillion, thirty-three billion, two million, two hundred twenty-three thousand, two hundred".