221221424040133 has 8 divisors (see below), whose sum is σ = 241348120495776. Its totient is φ = 201097337235600.

The previous prime is 221221424040079. The next prime is 221221424040151. The reversal of 221221424040133 is 331040424122122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221221424040133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221221424040095 and 221221424040104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221221424040233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 652235523 + ... + 652574608.

It is an arithmetic number, because the mean of its divisors is an integer number (30168515061972).

Almost surely, 2^{221221424040133} is an apocalyptic number.

It is an amenable number.

221221424040133 is a deficient number, since it is larger than the sum of its proper divisors (20126696455643).

221221424040133 is a wasteful number, since it uses less digits than its factorization.

221221424040133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304825555.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 221221424040133 its reverse (331040424122122), we get a palindrome (552261848162255).

The spelling of 221221424040133 in words is "two hundred twenty-one trillion, two hundred twenty-one billion, four hundred twenty-four million, forty thousand, one hundred thirty-three".