2202404421 has 24 divisors (see below), whose sum is σ = 3499300224. Its totient is φ = 1227817920.

The previous prime is 2202404389. The next prime is 2202404429. The reversal of 2202404421 is 1244042022.

It is not a de Polignac number, because 2202404421 - 2⁵ = 2202404389 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202404429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 176685 + ... + 188738.

It is an arithmetic number, because the mean of its divisors is an integer number (145804176).

Almost surely, 2^2202404421 is an apocalyptic number.

2202404421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2202404421 is a deficient number, since it is larger than the sum of its proper divisors (1296895803).

2202404421 is a wasteful number, since it uses less digits than its factorization.

2202404421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365481 (or 365474 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 2202404421 is about 46929.7818128318. The cubic root of 2202404421 is about 1301.0650878864.

Adding to 2202404421 its reverse (1244042022), we get a palindrome (3446446443).

The spelling of 2202404421 in words is "two billion, two hundred two million, four hundred four thousand, four hundred twenty-one".