2202432421 has 4 divisors (see below), whose sum is σ = 2517065632. Its totient is φ = 1887799212.

The previous prime is 2202432409. The next prime is 2202432457. The reversal of 2202432421 is 1242342022.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1242342022 = 2 ⋅621171011.

It is a cyclic number.

It is not a de Polignac number, because 2202432421 - 2⁹ = 2202431909 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2202432392 and 2202432401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202436421) 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, 157316595 + ... + 157316608.

It is an arithmetic number, because the mean of its divisors is an integer number (629266408).

Almost surely, 2^2202432421 is an apocalyptic number.

It is an amenable number.

2202432421 is a deficient number, since it is larger than the sum of its proper divisors (314633211).

2202432421 is an equidigital number, since it uses as much as digits as its factorization.

2202432421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314633210.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 2202432421 is about 46930.0801299124. The cubic root of 2202432421 is about 1301.0706015072.

Adding to 2202432421 its reverse (1242342022), we get a palindrome (3444774443).

It can be divided in two parts, 22024 and 32421, that added together give a palindrome (54445).

The spelling of 2202432421 in words is "two billion, two hundred two million, four hundred thirty-two thousand, four hundred twenty-one".