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2212120122 = 234343919531
BaseRepresentation
bin1000001111011010…
…0100011000111010
312201011111100022220
42003312210120322
514012300320442
61003301224510
7105550465542
oct20366443072
95634440286
102212120122
11a35758653
12518a02136
132933b6224
1416db14322
15ce312eec
hex83da463a

2212120122 has 32 divisors (see below), whose sum is σ = 4537674240. Its totient is φ = 718547760.

The previous prime is 2212120111. The next prime is 2212120123. The reversal of 2212120122 is 2210212122.

It is not an unprimeable number, because it can be changed into a prime (2212120123) 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, 103497 + ... + 123027.

It is an arithmetic number, because the mean of its divisors is an integer number (141802320).

Almost surely, 22212120122 is an apocalyptic number.

2212120122 is an abundant number, since it is smaller than the sum of its proper divisors (2325554118).

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

2212120122 is a wasteful number, since it uses less digits than its factorization.

2212120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20018.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2212120122 is about 47033.1810746413. The cubic root of 2212120122 is about 1302.9754571226.

Adding to 2212120122 its reverse (2210212122), we get a palindrome (4422332244).

The spelling of 2212120122 in words is "two billion, two hundred twelve million, one hundred twenty thousand, one hundred twenty-two".

Divisors: 1 2 3 6 43 86 129 258 439 878 1317 2634 18877 19531 37754 39062 56631 58593 113262 117186 839833 1679666 2519499 5038998 8574109 17148218 25722327 51444654 368686687 737373374 1106060061 2212120122