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22020222020 = 2252514743783
BaseRepresentation
bin10100100000100000…
…011110110001000100
32002211121221011212112
4110200200132301010
5330044134101040
614041013440152
71406452541006
oct244040366104
962747834775
1022020222020
11937a9287a5
124326640058
1320cc0b2494
1410cc726376
1588d2c5365
hex52081ec44

22020222020 has 24 divisors (see below), whose sum is σ = 46245361344. Its totient is φ = 8807537376.

The previous prime is 22020222013. The next prime is 22020222023. The reversal of 22020222020 is 2022202022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22020221986 and 22020222004.

It is not an unprimeable number, because it can be changed into a prime (22020222023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 481049 + ... + 524831.

It is an arithmetic number, because the mean of its divisors is an integer number (1926890056).

Almost surely, 222020222020 is an apocalyptic number.

22020222020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22020222020 is an abundant number, since it is smaller than the sum of its proper divisors (24225139324).

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

22020222020 is a wasteful number, since it uses less digits than its factorization.

22020222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68939 (or 68937 counting only the distinct ones).

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

Adding to 22020222020 its reverse (2022202022), we get a palindrome (24042424042).

The spelling of 22020222020 in words is "twenty-two billion, twenty million, two hundred twenty-two thousand, twenty".

Divisors: 1 2 4 5 10 20 25147 43783 50294 87566 100588 125735 175132 218915 251470 437830 502940 875660 1101011101 2202022202 4404044404 5505055505 11010111010 22020222020