202121203324 has 12 divisors (see below), whose sum is σ = 353763858448. Its totient is φ = 101045815200.

The previous prime is 202121203309. The next prime is 202121203331. The reversal of 202121203324 is 423302121202.

It is a junction number, because it is equal to n+sod(n) for n = 202121203295 and 202121203304.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3665832 + ... + 3720559.

Almost surely, 2^202121203324 is an apocalyptic number.

It is an amenable number.

202121203324 is a deficient number, since it is larger than the sum of its proper divisors (151642655124).

202121203324 is a wasteful number, since it uses less digits than its factorization.

202121203324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7393236 (or 7393234 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 202121203324 its reverse (423302121202), we get a palindrome (625423324526).

The spelling of 202121203324 in words is "two hundred two billion, one hundred twenty-one million, two hundred three thousand, three hundred twenty-four".