3101221003221 has 24 divisors (see below), whose sum is σ = 4890059051904. Its totient is φ = 1878263818560.

The previous prime is 3101221003219. The next prime is 3101221003229. The reversal of 3101221003221 is 1223001221013.

3101221003221 is a `hidden beast` number, since 310 + 1 + 22 + 10 + 0 + 322 + 1 = 666.

It is not a de Polignac number, because 3101221003221 - 2¹ = 3101221003219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3101221003194 and 3101221003203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3101221003229) 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 23 ways as a sum of consecutive naturals, for example, 10385896 + ... + 10680321.

It is an arithmetic number, because the mean of its divisors is an integer number (203752460496).

Almost surely, 2^{3101221003221} is an apocalyptic number.

It is an amenable number.

3101221003221 is a deficient number, since it is larger than the sum of its proper divisors (1788838048683).

3101221003221 is a wasteful number, since it uses less digits than its factorization.

3101221003221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21067721 (or 21067718 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 3101221003221 its reverse (1223001221013), we get a palindrome (4324222224234).

The spelling of 3101221003221 in words is "three trillion, one hundred one billion, two hundred twenty-one million, three thousand, two hundred twenty-one".