3221111210121 has 192 divisors, whose sum is σ = 5712366865920. Its totient is φ = 1709983457280.

The previous prime is 3221111210101. The next prime is 3221111210147. The reversal of 3221111210121 is 1210121111223.

It is a happy number.

3221111210121 is a `hidden beast` number, since 3 + 221 + 111 + 210 + 121 = 666.

It is not a de Polignac number, because 3221111210121 - 2¹³ = 3221111201929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3221111210094 and 3221111210103.

It is not an unprimeable number, because it can be changed into a prime (3221111210101) 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 191 ways as a sum of consecutive naturals, for example, 2655490911 + ... + 2655492123.

It is an arithmetic number, because the mean of its divisors is an integer number (29751910760).

Almost surely, 2^{3221111210121} is an apocalyptic number.

It is an amenable number.

3221111210121 is a deficient number, since it is larger than the sum of its proper divisors (2491255655799).

3221111210121 is a wasteful number, since it uses less digits than its factorization.

3221111210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696 (or 1693 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 3221111210121 its reverse (1210121111223), we get a palindrome (4431232321344).

The spelling of 3221111210121 in words is "three trillion, two hundred twenty-one billion, one hundred eleven million, two hundred ten thousand, one hundred twenty-one".