3220121201 has 4 divisors (see below), whose sum is σ = 3512859504. Its totient is φ = 2927382900.

The previous prime is 3220121189. The next prime is 3220121231. The reversal of 3220121201 is 1021210223.

It is a happy number.

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 not a de Polignac number, because 3220121201 - 2¹⁰ = 3220120177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3220121231) 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, 146369135 + ... + 146369156.

It is an arithmetic number, because the mean of its divisors is an integer number (878214876).

Almost surely, 2^3220121201 is an apocalyptic number.

It is an amenable number.

3220121201 is a deficient number, since it is larger than the sum of its proper divisors (292738303).

3220121201 is a wasteful number, since it uses less digits than its factorization.

3220121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292738302.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 3220121201 is about 56746.1117698825. Note that the first 3 decimals coincide. The cubic root of 3220121201 is about 1476.6947790957.

Adding to 3220121201 its reverse (1021210223), we get a palindrome (4241331424).

It can be divided in two parts, 3220 and 121201, that added together give a palindrome (124421).

The spelling of 3220121201 in words is "three billion, two hundred twenty million, one hundred twenty-one thousand, two hundred one".