21222030152 has 32 divisors (see below), whose sum is σ = 40448402400. Its totient is φ = 10437133824.

The previous prime is 21222030101. The next prime is 21222030157. The reversal of 21222030152 is 25103022212.

It is not an unprimeable number, because it can be changed into a prime (21222030157) 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 7 ways as a sum of consecutive naturals, for example, 42599 + ... + 210377.

It is an arithmetic number, because the mean of its divisors is an integer number (1264012575).

Almost surely, 2^21222030152 is an apocalyptic number.

It is an amenable number.

21222030152 is a deficient number, since it is larger than the sum of its proper divisors (19226372248).

21222030152 is a wasteful number, since it uses less digits than its factorization.

21222030152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168045 (or 168041 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 21222030152 its reverse (25103022212), we get a palindrome (46325052364).

The spelling of 21222030152 in words is "twenty-one billion, two hundred twenty-two million, thirty thousand, one hundred fifty-two".