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2122012 = 2231109157
BaseRepresentation
bin1000000110000100011100
310222210212001
420012010130
51020401022
6113252044
724015424
oct10060434
93883761
102122012
11121a332
12864024
13593b39
143d3484
152bdb27
hex20611c

2122012 has 24 divisors (see below), whose sum is σ = 3893120. Its totient is φ = 1010880.

The previous prime is 2122009. The next prime is 2122013. The reversal of 2122012 is 2102212.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2122012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13438 + ... + 13594.

22122012 is an apocalyptic number.

It is an amenable number.

2122012 is a deficient number, since it is larger than the sum of its proper divisors (1771108).

2122012 is a wasteful number, since it uses less digits than its factorization.

2122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301 (or 299 counting only the distinct ones).

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

The square root of 2122012 is about 1456.7127376391. The cubic root of 2122012 is about 128.5037925269.

Adding to 2122012 its reverse (2102212), we get a palindrome (4224224).

The spelling of 2122012 in words is "two million, one hundred twenty-two thousand, twelve".