22021013320 has 32 divisors (see below), whose sum is σ = 49563446400. Its totient is φ = 8805531328.

The previous prime is 22021013299. The next prime is 22021013363. The reversal of 22021013320 is 2331012022.

It is a junction number, because it is equal to n+sod(n) for n = 22021013294 and 22021013303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36507 + ... + 213013.

It is an arithmetic number, because the mean of its divisors is an integer number (1548857700).

Almost surely, 2^22021013320 is an apocalyptic number.

22021013320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22021013320 is an abundant number, since it is smaller than the sum of its proper divisors (27542433080).

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

22021013320 is a wasteful number, since it uses less digits than its factorization.

22021013320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179637 (or 179633 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 22021013320 its reverse (2331012022), we get a palindrome (24352025342).

The spelling of 22021013320 in words is "twenty-two billion, twenty-one million, thirteen thousand, three hundred twenty".