3504022121 has 4 divisors (see below), whose sum is σ = 3624850500. Its totient is φ = 3383193744.

The previous prime is 3504022111. The next prime is 3504022127. The reversal of 3504022121 is 1212204053.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1212204053 = 97 ⋅12496949.

It can be written as a sum of positive squares in 2 ways, for example, as 2708161600 + 795860521 = 52040^2 + 28211^2 .

It is a cyclic number.

It is not a de Polignac number, because 3504022121 - 2⁶ = 3504022057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3504022093 and 3504022102.

It is not an unprimeable number, because it can be changed into a prime (3504022127) 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, 60414146 + ... + 60414203.

It is an arithmetic number, because the mean of its divisors is an integer number (906212625).

Almost surely, 2^3504022121 is an apocalyptic number.

It is an amenable number.

3504022121 is a deficient number, since it is larger than the sum of its proper divisors (120828379).

3504022121 is a wasteful number, since it uses less digits than its factorization.

3504022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120828378.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 3504022121 is about 59194.7811973319. The cubic root of 3504022121 is about 1518.8758598785.

Adding to 3504022121 its reverse (1212204053), we get a palindrome (4716226174).

The spelling of 3504022121 in words is "three billion, five hundred four million, twenty-two thousand, one hundred twenty-one".