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2112212010101 = 237123310875107
BaseRepresentation
bin11110101111001001101…
…001011000010001110101
321110220222200112120202012
4132233021221120101311
5234101302233310401
64254200425454005
7305413403565404
oct36571151302165
97426880476665
102112212010101
11744869683916
122a143b641305
1312424710939b
147433575963b
1539e243b58bb
hex1ebc9a58475

2112212010101 has 32 divisors (see below), whose sum is σ = 2247187857408. Its totient is φ = 1981159044480.

The previous prime is 2112212010089. The next prime is 2112212010109. The reversal of 2112212010101 is 1010102122112.

It is not a de Polignac number, because 2112212010101 - 210 = 2112212009077 is a prime.

It is a super-3 number, since 3×21122120101013 (a number of 38 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112212010109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 413588990 + ... + 413594096.

It is an arithmetic number, because the mean of its divisors is an integer number (70224620544).

Almost surely, 22112212010101 is an apocalyptic number.

It is an amenable number.

2112212010101 is a deficient number, since it is larger than the sum of its proper divisors (134975847307).

2112212010101 is a wasteful number, since it uses less digits than its factorization.

2112212010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6521.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2112212010101 its reverse (1010102122112), we get a palindrome (3122314132213).

The spelling of 2112212010101 in words is "two trillion, one hundred twelve billion, two hundred twelve million, ten thousand, one hundred one".

Divisors: 1 23 71 233 1087 1633 5107 5359 16543 25001 77177 117461 253271 362597 380489 1189931 1775071 5551309 5825233 8339731 17982241 27368413 84485101 127680107 394142939 413591543 1293454997 1943157323 9065287597 29749464931 91835304787 2112212010101