3221101111121 has 4 divisors (see below), whose sum is σ = 3221114866032. Its totient is φ = 3221087356212.

The previous prime is 3221101111079. The next prime is 3221101111127. The reversal of 3221101111121 is 1211111011223.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3221101111121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3221101111121.

It is not an unprimeable number, because it can be changed into a prime (3221101111127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6519995 + ... + 6996608.

It is an arithmetic number, because the mean of its divisors is an integer number (805278716508).

Almost surely, 2^{3221101111121} is an apocalyptic number.

It is an amenable number.

3221101111121 is a deficient number, since it is larger than the sum of its proper divisors (13754911).

3221101111121 is a wasteful number, since it uses less digits than its factorization.

3221101111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13754910.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 3221101111121 its reverse (1211111011223), we get a palindrome (4432212122344).

The spelling of 3221101111121 in words is "three trillion, two hundred twenty-one billion, one hundred one million, one hundred eleven thousand, one hundred twenty-one".