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2112022222220 = 225234591352657
BaseRepresentation
bin11110101110111110010…
…101011001010110001100
321110220111110102100201102
4132232332111121112030
5234100410142102340
64254125530002232
7305405610453101
oct36567625312614
97426443370642
102112022222220
11744781536429
122a13a7b76378
131242169b9371
1474318474aa8
1539e128c7215
hex1ebbe55958c

2112022222220 has 24 divisors (see below), whose sum is σ = 4628083479264. Its totient is φ = 808078067456.

The previous prime is 2112022222201. The next prime is 2112022222237. The reversal of 2112022222220 is 222222202112.

It is a super-2 number, since 2×21120222222202 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2112022222192 and 2112022222201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2295675869 + ... + 2295676788.

It is an arithmetic number, because the mean of its divisors is an integer number (192836811636).

Almost surely, 22112022222220 is an apocalyptic number.

2112022222220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112022222220 is an abundant number, since it is smaller than the sum of its proper divisors (2516061257044).

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

2112022222220 is a wasteful number, since it uses less digits than its factorization.

2112022222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4591352689 (or 4591352687 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 2112022222220 its reverse (222222202112), we get a palindrome (2334244424332).

The spelling of 2112022222220 in words is "two trillion, one hundred twelve billion, twenty-two million, two hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 4591352657 9182705314 18365410628 22956763285 45913526570 91827053140 105601111111 211202222222 422404444444 528005555555 1056011111110 2112022222220