221533612413299 has 4 divisors (see below), whose sum is σ = 221533887944736. Its totient is φ = 221533336881864.

The previous prime is 221533612413277. The next prime is 221533612413343. The reversal of 221533612413299 is 992314216335122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 221533612413299 - 2²⁸ = 221533343977843 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221533612413299.

It is not an unprimeable number, because it can be changed into a prime (221533612413209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136556144 + ... + 138168909.

It is an arithmetic number, because the mean of its divisors is an integer number (55383471986184).

Almost surely, 2^{221533612413299} is an apocalyptic number.

221533612413299 is a deficient number, since it is larger than the sum of its proper divisors (275531437).

221533612413299 is an equidigital number, since it uses as much as digits as its factorization.

221533612413299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275531436.

The product of its digits is 4199040, while the sum is 53.

The spelling of 221533612413299 in words is "two hundred twenty-one trillion, five hundred thirty-three billion, six hundred twelve million, four hundred thirteen thousand, two hundred ninety-nine".