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2220102100212 = 223185008508351
BaseRepresentation
bin100000010011101000011…
…001011010010011110100
321212020110201210000212120
4200103220121122103310
5242333232114201322
64415522324515540
7316253125326153
oct40235031322364
97766421700776
102220102100212
117865a3837447
122ba32b84bbb0
1313147c4588a9
147964c63359a
153cb3b139a5c
hex204e865a4f4

2220102100212 has 12 divisors (see below), whose sum is σ = 5180238233856. Its totient is φ = 740034033400.

The previous prime is 2220102100199. The next prime is 2220102100219. The reversal of 2220102100212 is 2120012010222.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 2220102100191 and 2220102100200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220102100219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92504254164 + ... + 92504254187.

It is an arithmetic number, because the mean of its divisors is an integer number (431686519488).

Almost surely, 22220102100212 is an apocalyptic number.

It is an amenable number.

2220102100212 is an abundant number, since it is smaller than the sum of its proper divisors (2960136133644).

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

2220102100212 is a wasteful number, since it uses less digits than its factorization.

2220102100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185008508358 (or 185008508356 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2220102100212 its reverse (2120012010222), we get a palindrome (4340114110434).

The spelling of 2220102100212 in words is "two trillion, two hundred twenty billion, one hundred two million, one hundred thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 185008508351 370017016702 555025525053 740034033404 1110051050106 2220102100212