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2122222012212 = 2234315127237307
BaseRepresentation
bin11110111000011110010…
…010100000011100110100
321111212211022010101012010
4132320132102200130310
5234232302313342322
64302534010524220
7306216432316131
oct36703622403464
97455738111163
102122222012212
11749035aaa635
122a3373a36670
13125180bb9363
1474a04d63588
153a30d09c20c
hex1ee1e4a0734

2122222012212 has 48 divisors (see below), whose sum is σ = 5100567245312. Its totient is φ = 686380111200.

The previous prime is 2122222012189. The next prime is 2122222012219. The reversal of 2122222012212 is 2122102222212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122222012219) 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, 13540738 + ... + 13696569.

Almost surely, 22122222012212 is an apocalyptic number.

It is an amenable number.

2122222012212 is an abundant number, since it is smaller than the sum of its proper divisors (2978345233100).

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

2122222012212 is a wasteful number, since it uses less digits than its factorization.

2122222012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27237508 (or 27237506 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 2122222012212 its reverse (2122102222212), we get a palindrome (4244324234424).

The spelling of 2122222012212 in words is "two trillion, one hundred twenty-two billion, two hundred twenty-two million, twelve thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 43 86 129 151 172 258 302 453 516 604 906 1812 6493 12986 19479 25972 38958 77916 27237307 54474614 81711921 108949228 163423842 326847684 1171204201 2342408402 3513612603 4112833357 4684816804 7027225206 8225666714 12338500071 14054450412 16451333428 24677000142 49354000284 176851834351 353703668702 530555503053 707407337404 1061111006106 2122222012212