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2222111210020 = 2251319449820083
BaseRepresentation
bin100000010101100000001…
…001100011101000100100
321212102122202021101101221
4200111200021203220210
5242401340432210040
64420453535030124
7316353662432152
oct40254011435044
97772582241357
102222111210020
11787434936379
122ba7b066b344
1313170c772570
147979d3c03d2
153cc076eb74a
hex20560263a24

2222111210020 has 48 divisors (see below), whose sum is σ = 5289884187840. Its totient is φ = 777289101696.

The previous prime is 2222111209991. The next prime is 2222111210027. The reversal of 2222111210020 is 200121112222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2222111209976 and 2222111210003.

It is not an unprimeable number, because it can be changed into a prime (2222111210027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 224905102 + ... + 224914981.

It is an arithmetic number, because the mean of its divisors is an integer number (110205920580).

Almost surely, 22222111210020 is an apocalyptic number.

2222111210020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2222111210020 is an abundant number, since it is smaller than the sum of its proper divisors (3067772977820).

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

2222111210020 is a wasteful number, since it uses less digits than its factorization.

2222111210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449820124 (or 449820122 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2222111210020 its reverse (200121112222), we get a palindrome (2422232322242).

The spelling of 2222111210020 in words is "two trillion, two hundred twenty-two billion, one hundred eleven million, two hundred ten thousand, twenty".

Divisors: 1 2 4 5 10 13 19 20 26 38 52 65 76 95 130 190 247 260 380 494 988 1235 2470 4940 449820083 899640166 1799280332 2249100415 4498200830 5847661079 8546581577 8996401660 11695322158 17093163154 23390644316 29238305395 34186326308 42732907885 58476610790 85465815770 111105560501 116953221580 170931631540 222211121002 444422242004 555527802505 1111055605010 2222111210020