3201111120221 has 16 divisors (see below), whose sum is σ = 3748142052480. Its totient is φ = 2676530373120.

The previous prime is 3201111120173. The next prime is 3201111120247. The reversal of 3201111120221 is 1220211111023.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3201111120221 - 2²² = 3201106925917 is a prime.

It is a super-2 number, since 2×3201111120221² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3201111120221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3201111120121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1423190 + ... + 2903048.

It is an arithmetic number, because the mean of its divisors is an integer number (234258878280).

Almost surely, 2^{3201111120221} is an apocalyptic number.

It is an amenable number.

3201111120221 is a deficient number, since it is larger than the sum of its proper divisors (547030932259).

3201111120221 is a wasteful number, since it uses less digits than its factorization.

3201111120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487444.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 3201111120221 its reverse (1220211111023), we get a palindrome (4421322231244).

The spelling of 3201111120221 in words is "three trillion, two hundred one billion, one hundred eleven million, one hundred twenty thousand, two hundred twenty-one".