202424022221 has 8 divisors (see below), whose sum is σ = 206705687904. Its totient is φ = 198179427600.

The previous prime is 202424022211. The next prime is 202424022223. The reversal of 202424022221 is 122220424202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202424022221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202424022223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9256730 + ... + 9278571.

It is an arithmetic number, because the mean of its divisors is an integer number (25838210988).

Almost surely, 2^202424022221 is an apocalyptic number.

It is an amenable number.

202424022221 is a deficient number, since it is larger than the sum of its proper divisors (4281665683).

202424022221 is a wasteful number, since it uses less digits than its factorization.

202424022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18535531.

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 202424022221 its reverse (122220424202), we get a palindrome (324644446423).

The spelling of 202424022221 in words is "two hundred two billion, four hundred twenty-four million, twenty-two thousand, two hundred twenty-one".