21222133012033 has 4 divisors (see below), whose sum is σ = 21230078403328. Its totient is φ = 21214187620740.

The previous prime is 21222133011973. The next prime is 21222133012079. The reversal of 21222133012033 is 33021033122212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21222133012033 - 2⁴¹ = 19023109756481 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21222133011989 and 21222133012007.

It is not an unprimeable number, because it can be changed into a prime (21222133712033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3972691641 + ... + 3972696982.

It is an arithmetic number, because the mean of its divisors is an integer number (5307519600832).

Almost surely, 2^{21222133012033} is an apocalyptic number.

It is an amenable number.

21222133012033 is a deficient number, since it is larger than the sum of its proper divisors (7945391295).

21222133012033 is an equidigital number, since it uses as much as digits as its factorization.

21222133012033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7945391294.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 21222133012033 its reverse (33021033122212), we get a palindrome (54243166134245).

The spelling of 21222133012033 in words is "twenty-one trillion, two hundred twenty-two billion, one hundred thirty-three million, twelve thousand, thirty-three".