22021203030 has 64 divisors (see below), whose sum is σ = 55358899200. Its totient is φ = 5595598976.

The previous prime is 22021203023. The next prime is 22021203031. The reversal of 22021203030 is 3030212022.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021203031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120796 + ... + 242144.

It is an arithmetic number, because the mean of its divisors is an integer number (864982800).

Almost surely, 2^22021203030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22021203030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27679449600).

22021203030 is an abundant number, since it is smaller than the sum of its proper divisors (33337696170).

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

22021203030 is a wasteful number, since it uses less digits than its factorization.

22021203030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121645.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 22021203030 its reverse (3030212022), we get a palindrome (25051415052).

The spelling of 22021203030 in words is "twenty-two billion, twenty-one million, two hundred three thousand, thirty".