2232202121 has 4 divisors (see below), whose sum is σ = 2255214612. Its totient is φ = 2209189632.

The previous prime is 2232202087. The next prime is 2232202139. The reversal of 2232202121 is 1212022322.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 752953600 + 1479248521 = 27440^2 + 38461^2 .

It is a cyclic number.

It is not a de Polignac number, because 2232202121 - 2⁶ = 2232202057 is a prime.

It is a super-3 number, since 3×2232202121³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2232202121.

It is not an unprimeable number, because it can be changed into a prime (2232202421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11506100 + ... + 11506293.

It is an arithmetic number, because the mean of its divisors is an integer number (563803653).

Almost surely, 2^2232202121 is an apocalyptic number.

It is an amenable number.

2232202121 is a deficient number, since it is larger than the sum of its proper divisors (23012491).

2232202121 is an equidigital number, since it uses as much as digits as its factorization.

2232202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23012490.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2232202121 is about 47246.1863117014. The cubic root of 2232202121 is about 1306.9064624449.

Adding to 2232202121 its reverse (1212022322), we get a palindrome (3444224443).

The spelling of 2232202121 in words is "two billion, two hundred thirty-two million, two hundred two thousand, one hundred twenty-one".