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2220212212 = 224451124703
BaseRepresentation
bin1000010001010101…
…1011111111110100
312201201201110120221
42010111123333310
514021333242322
61004150504124
7106006330621
oct20425337764
95651643527
102220212212
11a3a285329
1251b665044
13294c8a54a
14170c1d348
15cedb09c7
hex8455bff4

2220212212 has 12 divisors (see below), whose sum is σ = 3886275456. Its totient is φ = 1109847800.

The previous prime is 2220212207. The next prime is 2220212221. The reversal of 2220212212 is 2122120222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44548 + ... + 80155.

It is an arithmetic number, because the mean of its divisors is an integer number (323856288).

Almost surely, 22220212212 is an apocalyptic number.

It is an amenable number.

2220212212 is a deficient number, since it is larger than the sum of its proper divisors (1666063244).

2220212212 is a wasteful number, since it uses less digits than its factorization.

2220212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129158 (or 129156 counting only the distinct ones).

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

The square root of 2220212212 is about 47119.1278781770. The cubic root of 2220212212 is about 1304.5623155065.

Adding to 2220212212 its reverse (2122120222), we get a palindrome (4342332434).

The spelling of 2220212212 in words is "two billion, two hundred twenty million, two hundred twelve thousand, two hundred twelve".

Divisors: 1 2 4 4451 8902 17804 124703 249406 498812 555053053 1110106106 2220212212