21220002220230 has 96 divisors (see below), whose sum is σ = 60188476027680. Its totient is φ = 5144171735040.

The previous prime is 21220002220229. The next prime is 21220002220237. The reversal of 21220002220230 is 3202220002212.

21220002220230 is a `hidden beast` number, since 2 + 12 + 200 + 0 + 2 + 220 + 230 = 666.

It is a super-2 number, since 2×21220002220230² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21220002220237) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 122864776 + ... + 123037364.

It is an arithmetic number, because the mean of its divisors is an integer number (626963291955).

Almost surely, 2^{21220002220230} is an apocalyptic number.

21220002220230 is an abundant number, since it is smaller than the sum of its proper divisors (38968473807450).

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

21220002220230 is a wasteful number, since it uses less digits than its factorization.

21220002220230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296806 (or 296803 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 21220002220230 its reverse (3202220002212), we get a palindrome (24422222222442).

The spelling of 21220002220230 in words is "twenty-one trillion, two hundred twenty billion, two million, two hundred twenty thousand, two hundred thirty".