221533612413384 has 32 divisors (see below), whose sum is σ = 553908702373920. Its totient is φ = 73834581292416.

The previous prime is 221533612413383. The next prime is 221533612413437. The reversal of 221533612413384 is 483314216335122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (221533612413383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 622079454 + ... + 622435469.

It is an arithmetic number, because the mean of its divisors is an integer number (17309646949185).

Almost surely, 2^{221533612413384} is an apocalyptic number.

221533612413384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

221533612413384 is an abundant number, since it is smaller than the sum of its proper divisors (332375089960536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221533612413384 is a wasteful number, since it uses less digits than its factorization.

221533612413384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244522349 (or 1244522345 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 48.

The spelling of 221533612413384 in words is "two hundred twenty-one trillion, five hundred thirty-three billion, six hundred twelve million, four hundred thirteen thousand, three hundred eighty-four".