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22002022220 = 2251100101111
BaseRepresentation
bin10100011111011011…
…000011011101001100
32002210100200112102212
4110133123003131030
5330030004202340
614035123405552
71406142050243
oct243733033514
962710615385
1022002022220
119370627a42
1243205238b8
1320c83ac579
1410ca14995a
1588b8cca65
hex51f6c374c

22002022220 has 12 divisors (see below), whose sum is σ = 46204246704. Its totient is φ = 8800808880.

The previous prime is 22002022219. The next prime is 22002022223. The reversal of 22002022220 is 2222020022.

It is a happy number.

It is a hoax number, since the sum of its digits (14) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 22002022195 and 22002022204.

It is not an unprimeable number, because it can be changed into a prime (22002022223) 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 3 ways as a sum of consecutive naturals, for example, 550050536 + ... + 550050575.

It is an arithmetic number, because the mean of its divisors is an integer number (3850353892).

Almost surely, 222002022220 is an apocalyptic number.

22002022220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22002022220 is an abundant number, since it is smaller than the sum of its proper divisors (24202224484).

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

22002022220 is a wasteful number, since it uses less digits than its factorization.

22002022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100101120 (or 1100101118 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

Adding to 22002022220 its reverse (2222020022), we get a palindrome (24224042242).

The spelling of 22002022220 in words is "twenty-two billion, two million, twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 1100101111 2200202222 4400404444 5500505555 11001011110 22002022220