21222110021333 has 16 divisors (see below), whose sum is σ = 23120914440960. Its totient is φ = 19361535118464.

The previous prime is 21222110021327. The next prime is 21222110021341. The reversal of 21222110021333 is 33312001122212.

It is a cyclic number.

It is not a de Polignac number, because 21222110021333 - 2¹⁶ = 21222109955797 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21222110021299 and 21222110021308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21222110021363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 981641 + ... + 6588462.

It is an arithmetic number, because the mean of its divisors is an integer number (1445057152560).

Almost surely, 2^{21222110021333} is an apocalyptic number.

It is an amenable number.

21222110021333 is a deficient number, since it is larger than the sum of its proper divisors (1898804419627).

21222110021333 is a wasteful number, since it uses less digits than its factorization.

21222110021333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7572628.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 21222110021333 its reverse (33312001122212), we get a palindrome (54534111143545).

The spelling of 21222110021333 in words is "twenty-one trillion, two hundred twenty-two billion, one hundred ten million, twenty-one thousand, three hundred thirty-three".