21333222233329 has 2 divisors, whose sum is σ = 21333222233330. Its totient is φ = 21333222233328.

The previous prime is 21333222233311. The next prime is 21333222233339. The reversal of 21333222233329 is 92333222233312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20986000778304 + 347221455025 = 4581048^2 + 589255^2 .

It is a cyclic number.

It is not a de Polignac number, because 21333222233329 - 2²¹ = 21333220136177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21333222233291 and 21333222233300.

It is not a weakly prime, because it can be changed into another prime (21333222233339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10666611116664 + 10666611116665.

It is an arithmetic number, because the mean of its divisors is an integer number (10666611116665).

Almost surely, 2^{21333222233329} is an apocalyptic number.

It is an amenable number.

21333222233329 is a deficient number, since it is larger than the sum of its proper divisors (1).

21333222233329 is an equidigital number, since it uses as much as digits as its factorization.

21333222233329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 419904, while the sum is 40.

The spelling of 21333222233329 in words is "twenty-one trillion, three hundred thirty-three billion, two hundred twenty-two million, two hundred thirty-three thousand, three hundred twenty-nine".