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2220012101 = 61793371367
BaseRepresentation
bin1000010001010010…
…1011001001000101
312201201100022002102
42010110223021011
514021310341401
61004142321445
7106004535326
oct20424531105
95651308072
102220012101
11a3a158a4a
1251b589285
13294c1a438
14170baa44d
15ced7156b
hex8452b245

2220012101 has 16 divisors (see below), whose sum is σ = 2293424640. Its totient is φ = 2148007680.

The previous prime is 2220012073. The next prime is 2220012149. The reversal of 2220012101 is 1012100222.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2220012101 - 26 = 2220012037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220012191) 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, 1623320 + ... + 1624686.

It is an arithmetic number, because the mean of its divisors is an integer number (143339040).

Almost surely, 22220012101 is an apocalyptic number.

It is an amenable number.

2220012101 is a deficient number, since it is larger than the sum of its proper divisors (73412539).

2220012101 is a wasteful number, since it uses less digits than its factorization.

2220012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2220012101 is about 47117.0043720948. The cubic root of 2220012101 is about 1304.5231202873.

Adding to 2220012101 its reverse (1012100222), we get a palindrome (3232112323).

The spelling of 2220012101 in words is "two billion, two hundred twenty million, twelve thousand, one hundred one".

Divisors: 1 61 79 337 1367 4819 20557 26623 83387 107993 460679 1624003 6587573 28101419 36393641 2220012101