3203220121 has 8 divisors (see below), whose sum is σ = 3399485544. Its totient is φ = 3007825920.

The previous prime is 3203220107. The next prime is 3203220149. The reversal of 3203220121 is 1210223023.

It can be written as a sum of positive squares in 4 ways, for example, as 64979721 + 3138240400 = 8061^2 + 56020^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3203220121 - 2⁹ = 3203219609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3203220095 and 3203220104.

It is not an unprimeable number, because it can be changed into a prime (3203227121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210220 + ... + 224941.

It is an arithmetic number, because the mean of its divisors is an integer number (424935693).

Almost surely, 2^3203220121 is an apocalyptic number.

It is an amenable number.

3203220121 is a deficient number, since it is larger than the sum of its proper divisors (196265423).

3203220121 is a wasteful number, since it uses less digits than its factorization.

3203220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435611.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 3203220121 is about 56596.9974556955. The cubic root of 3203220121 is about 1474.1067265482.

Adding to 3203220121 its reverse (1210223023), we get a palindrome (4413443144).

The spelling of 3203220121 in words is "three billion, two hundred three million, two hundred twenty thousand, one hundred twenty-one".