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2122012222 = 2111011994799
BaseRepresentation
bin111111001111011…
…0101011000111110
312110212221101112021
41332132311120332
513321213342342
6550322030354
7103404543361
oct17636653076
95425841467
102122012222
11999903210
124b27a83ba
1327a827145
14161b7a0d8
15c6464567
hex7e7b563e

2122012222 has 32 divisors (see below), whose sum is σ = 3525120000. Its totient is φ = 950004000.

The previous prime is 2122012213. The next prime is 2122012229. The reversal of 2122012222 is 2222102212.

It is a junction number, because it is equal to n+sod(n) for n = 2122012196 and 2122012205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122012229) 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, 439779 + ... + 444577.

It is an arithmetic number, because the mean of its divisors is an integer number (110160000).

Almost surely, 22122012222 is an apocalyptic number.

2122012222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2122012222 is a deficient number, since it is larger than the sum of its proper divisors (1403107778).

2122012222 is a wasteful number, since it uses less digits than its factorization.

2122012222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5112.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2122012222 is about 46065.3038848112. The cubic root of 2122012222 is about 1285.0379700812.

Adding to 2122012222 its reverse (2222102212), we get a palindrome (4344114434).

The spelling of 2122012222 in words is "two billion, one hundred twenty-two million, twelve thousand, two hundred twenty-two".

Divisors: 1 2 11 22 101 199 202 398 1111 2189 2222 4378 4799 9598 20099 40198 52789 105578 221089 442178 484699 955001 969398 1910002 5331689 10505011 10663378 21010022 96455101 192910202 1061006111 2122012222