221033234479 has 2 divisors, whose sum is σ = 221033234480. Its totient is φ = 221033234478.

The previous prime is 221033234407. The next prime is 221033234551. The reversal of 221033234479 is 974432330122.

It is a balanced prime because it is at equal distance from previous prime (221033234407) and next prime (221033234551).

It is a cyclic number.

It is not a de Polignac number, because 221033234479 - 2¹⁹ = 221032710191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221033231479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110516617239 + 110516617240.

It is an arithmetic number, because the mean of its divisors is an integer number (110516617240).

Almost surely, 2^221033234479 is an apocalyptic number.

221033234479 is a deficient number, since it is larger than the sum of its proper divisors (1).

221033234479 is an equidigital number, since it uses as much as digits as its factorization.

221033234479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 40.

The spelling of 221033234479 in words is "two hundred twenty-one billion, thirty-three million, two hundred thirty-four thousand, four hundred seventy-nine".