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2122200212 = 2211194754011
BaseRepresentation
bin111111001111110…
…0011010010010100
312110220021221101212
41332133203102110
513321240401322
6550330040552
7103406255426
oct17637432224
95426257355
102122200212
11999a21480
124b2879158
1327a891892
14161bc8816
15c64a00e2
hex7e7e3494

2122200212 has 48 divisors (see below), whose sum is σ = 4355527680. Its totient is φ = 894405600.

The previous prime is 2122200209. The next prime is 2122200257. The reversal of 2122200212 is 2120022212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12287 + ... + 66297.

It is an arithmetic number, because the mean of its divisors is an integer number (90740160).

Almost surely, 22122200212 is an apocalyptic number.

2122200212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2122200212 is an abundant number, since it is smaller than the sum of its proper divisors (2233327468).

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

2122200212 is a wasteful number, since it uses less digits than its factorization.

2122200212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54092 (or 54090 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2122200212 is about 46067.3443124303. The cubic root of 2122200212 is about 1285.0759163211.

Adding to 2122200212 its reverse (2120022212), we get a palindrome (4242222424).

The spelling of 2122200212 in words is "two billion, one hundred twenty-two million, two hundred thousand, two hundred twelve".

Divisors: 1 2 4 11 19 22 38 44 47 76 94 188 209 418 517 836 893 1034 1786 2068 3572 9823 19646 39292 54011 108022 216044 594121 1026209 1188242 2052418 2376484 2538517 4104836 5077034 10154068 11288299 22576598 27923687 45153196 48231823 55847374 96463646 111694748 192927292 530550053 1061100106 2122200212