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1220100211013 = 31677201128909
BaseRepresentation
bin10001110000010011101…
…000111100000101000101
311022122021212210121220012
4101300103220330011011
5124442231123223023
62332301205520005
7154102135451225
oct21602350740505
94278255717805
101220100211013
11430494841132
12178569113005
138b09397b1a8
14430a5c58085
1521b0e64d978
hex11c13a3c145

1220100211013 has 16 divisors (see below), whose sum is σ = 1261989496320. Its totient is φ = 1178371022400.

The previous prime is 1220100210977. The next prime is 1220100211019. The reversal of 1220100211013 is 3101120010221.

It is a cyclic number.

It is not a de Polignac number, because 1220100211013 - 28 = 1220100210757 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 (1220100211019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42190403 + ... + 42219311.

It is an arithmetic number, because the mean of its divisors is an integer number (78874343520).

Almost surely, 21220100211013 is an apocalyptic number.

It is an amenable number.

1220100211013 is a deficient number, since it is larger than the sum of its proper divisors (41889285307).

1220100211013 is a wasteful number, since it uses less digits than its factorization.

1220100211013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31628.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1220100211013 its reverse (3101120010221), we get a palindrome (4321220221234).

The spelling of 1220100211013 in words is "one trillion, two hundred twenty billion, one hundred million, two hundred eleven thousand, thirteen".

Divisors: 1 31 677 2011 20987 28909 62341 896179 1361447 19571393 42204857 58135999 606713183 1802215969 39358071323 1220100211013