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12020122 = 2171923809
BaseRepresentation
bin101101110110…
…100110011010
3211121200111201
4231312212122
511034120442
61105344414
7204112042
oct55664632
924550451
1012020122
11686a994
12403810a
13264b1ca
14184c722
1510c67b7
hexb7699a

12020122 has 32 divisors (see below), whose sum is σ = 20995200. Its totient is φ = 5119488.

The previous prime is 12020119. The next prime is 12020131. The reversal of 12020122 is 22102021.

It is a junction number, because it is equal to n+sod(n) for n = 12020099 and 12020108.

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, 14454 + ... + 15262.

It is an arithmetic number, because the mean of its divisors is an integer number (656100).

Almost surely, 212020122 is an apocalyptic number.

12020122 is a deficient number, since it is larger than the sum of its proper divisors (8975078).

12020122 is a wasteful number, since it uses less digits than its factorization.

12020122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 12020122 is about 3467.0047591545. The cubic root of 12020122 is about 229.0707433844.

Adding to 12020122 its reverse (22102021), we get a palindrome (34122143).

The spelling of 12020122 in words is "twelve million, twenty thousand, one hundred twenty-two".

Divisors: 1 2 17 19 23 34 38 46 323 391 437 646 782 809 874 1618 7429 13753 14858 15371 18607 27506 30742 37214 261307 316319 353533 522614 632638 707066 6010061 12020122