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2131022122 = 243137180871
BaseRepresentation
bin111111100000100…
…1101000100101010
312111111220010210021
41333001031010222
513331020201442
6551243111054
7103544250325
oct17701150452
95444803707
102131022122
119a39a7509
124b581248a
1327c660148
141630437bc
15c7143e67
hex7f04d12a

2131022122 has 16 divisors (see below), whose sum is σ = 3294764352. Its totient is φ = 1033129440.

The previous prime is 2131022099. The next prime is 2131022123. The reversal of 2131022122 is 2212201312.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2131022096 and 2131022105.

It is not an unprimeable number, because it can be changed into a prime (2131022123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78654 + ... + 102217.

It is an arithmetic number, because the mean of its divisors is an integer number (205922772).

Almost surely, 22131022122 is an apocalyptic number.

2131022122 is a deficient number, since it is larger than the sum of its proper divisors (1163742230).

2131022122 is a wasteful number, since it uses less digits than its factorization.

2131022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181053.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2131022122 is about 46162.9951584600. The cubic root of 2131022122 is about 1286.8541260722.

Adding to 2131022122 its reverse (2212201312), we get a palindrome (4343223434).

The spelling of 2131022122 in words is "two billion, one hundred thirty-one million, twenty-two thousand, one hundred twenty-two".

Divisors: 1 2 43 86 137 274 5891 11782 180871 361742 7777453 15554906 24779327 49558654 1065511061 2131022122