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2220012012 = 2231131637177
BaseRepresentation
bin1000010001010010…
…1011000111101100
312201201100021222010
42010110223013230
514021310341022
61004142321220
7106004535141
oct20424530754
95651307863
102220012012
11a3a158979
1251b589210
13294c1a39a
14170baa3c8
15ced7150c
hex8452b1ec

2220012012 has 24 divisors (see below), whose sum is σ = 5225872176. Its totient is φ = 733454848.

The previous prime is 2220012001. The next prime is 2220012023. The reversal of 2220012012 is 2102100222.

It is an interprime number because it is at equal distance from previous prime (2220012001) and next prime (2220012023).

It is a Harshad number since it is a multiple of its sum of digits (12).

2220012012 is a modest number, since divided by 12012 gives 2220 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 817233 + ... + 819944.

It is an arithmetic number, because the mean of its divisors is an integer number (217744674).

Almost surely, 22220012012 is an apocalyptic number.

It is an amenable number.

2220012012 is an abundant number, since it is smaller than the sum of its proper divisors (3005860164).

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

2220012012 is a wasteful number, since it uses less digits than its factorization.

2220012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1637297 (or 1637295 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2220012012 is about 47117.0034276375. The cubic root of 2220012012 is about 1304.5231028545.

Adding to 2220012012 its reverse (2102100222), we get a palindrome (4322112234).

The spelling of 2220012012 in words is "two billion, two hundred twenty million, twelve thousand, twelve".

Divisors: 1 2 3 4 6 12 113 226 339 452 678 1356 1637177 3274354 4911531 6548708 9823062 19646124 185001001 370002002 555003003 740004004 1110006006 2220012012