21202413222 has 8 divisors (see below), whose sum is σ = 42404826456. Its totient is φ = 7067471072.

The previous prime is 21202413191. The next prime is 21202413223. The reversal of 21202413222 is 22231420212.

21202413222 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

21202413222 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21202413223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1766867763 + ... + 1766867774.

It is an arithmetic number, because the mean of its divisors is an integer number (5300603307).

Almost surely, 2^21202413222 is an apocalyptic number.

21202413222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21202413222 is a wasteful number, since it uses less digits than its factorization.

21202413222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3533735542.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 21202413222 its reverse (22231420212), we get a palindrome (43433833434).

The spelling of 21202413222 in words is "twenty-one billion, two hundred two million, four hundred thirteen thousand, two hundred twenty-two".