221001321231033 has 16 divisors (see below), whose sum is σ = 337629635091840. Its totient is φ = 125961825390336.

The previous prime is 221001321231013. The next prime is 221001321231127. The reversal of 221001321231033 is 330132123100122.

It is not a de Polignac number, because 221001321231033 - 2⁸ = 221001321230777 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221001321230994 and 221001321231012.

It is not an unprimeable number, because it can be changed into a prime (221001321231013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13526820160 + ... + 13526836497.

It is an arithmetic number, because the mean of its divisors is an integer number (21101852193240).

Almost surely, 2^{221001321231033} is an apocalyptic number.

It is an amenable number.

221001321231033 is a deficient number, since it is larger than the sum of its proper divisors (116628313860807).

221001321231033 is a wasteful number, since it uses less digits than its factorization.

221001321231033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27053657056.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 221001321231033 its reverse (330132123100122), we get a palindrome (551133444331155).

The spelling of 221001321231033 in words is "two hundred twenty-one trillion, one billion, three hundred twenty-one million, two hundred thirty-one thousand, thirty-three".