3220101 has 16 divisors (see below), whose sum is σ = 5022400. Its totient is φ = 2033424.

The previous prime is 3220097. The next prime is 3220117. The reversal of 3220101 is 1010223.

It is a happy number.

It is not a de Polignac number, because 3220101 - 2² = 3220097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220201) 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, 2626 + ... + 3651.

It is an arithmetic number, because the mean of its divisors is an integer number (313900).

Almost surely, 2^3220101 is an apocalyptic number.

It is an amenable number.

3220101 is a deficient number, since it is larger than the sum of its proper divisors (1802299).

3220101 is a wasteful number, since it uses less digits than its factorization.

3220101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6305 (or 6299 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 3220101 is about 1794.4639868217. The cubic root of 3220101 is about 147.6691691140.

Adding to 3220101 its reverse (1010223), we get a palindrome (4230324).

It can be divided in two parts, 3220 and 101, that added together give a triangular number (3321 = T₈₁).

The spelling of 3220101 in words is "three million, two hundred twenty thousand, one hundred one".