21333200101224 has 32 divisors (see below), whose sum is σ = 58181454822240. Its totient is φ = 6464606091200.

The previous prime is 21333200101223. The next prime is 21333200101237. The reversal of 21333200101224 is 42210100233312.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 21333200101194 and 21333200101203.

It is not an unprimeable number, because it can be changed into a prime (21333200101223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40403787807 + ... + 40403788334.

It is an arithmetic number, because the mean of its divisors is an integer number (1818170463195).

Almost surely, 2^{21333200101224} is an apocalyptic number.

21333200101224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

21333200101224 is an abundant number, since it is smaller than the sum of its proper divisors (36848254721016).

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

21333200101224 is a wasteful number, since it uses less digits than its factorization.

21333200101224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80807576161 (or 80807576157 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 21333200101224 its reverse (42210100233312), we get a palindrome (63543300334536).

The spelling of 21333200101224 in words is "twenty-one trillion, three hundred thirty-three billion, two hundred million, one hundred one thousand, two hundred twenty-four".