22002045420 has 24 divisors (see below), whose sum is σ = 61605727344. Its totient is φ = 5867212096.

The previous prime is 22002045419. The next prime is 22002045421. The reversal of 22002045420 is 2454020022.

It is an interprime number because it is at equal distance from previous prime (22002045419) and next prime (22002045421).

It is not an unprimeable number, because it can be changed into a prime (22002045421) 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, 183350319 + ... + 183350438.

It is an arithmetic number, because the mean of its divisors is an integer number (2566905306).

Almost surely, 2^22002045420 is an apocalyptic number.

22002045420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22002045420 is an abundant number, since it is smaller than the sum of its proper divisors (39603681924).

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

22002045420 is a wasteful number, since it uses less digits than its factorization.

22002045420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366700769 (or 366700767 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

Adding to 22002045420 its reverse (2454020022), we get a palindrome (24456065442).

The spelling of 22002045420 in words is "twenty-two billion, two million, forty-five thousand, four hundred twenty".