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1111210220101 = 31251142810721
BaseRepresentation
bin10000001010111001010…
…010100101101001000101
310221020020011001221201211
4100022321102211221011
5121201224304020401
62210252151251421
7143165553011662
oct20127122455105
93836204057654
101111210220101
11399297222303
1215b43a079b71
1380a2c4279c7
143bad625aa69
151dd89c17951
hex102b94a5a45

1111210220101 has 8 divisors (see below), whose sum is σ = 1151625662208. Its totient is φ = 1071080400000.

The previous prime is 1111210220083. The next prime is 1111210220111. The reversal of 1111210220101 is 1010220121111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1111210220101 - 29 = 1111210219589 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 (1111210220111) 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 7 ways as a sum of consecutive naturals, for example, 71397580 + ... + 71413141.

It is an arithmetic number, because the mean of its divisors is an integer number (143953207776).

Almost surely, 21111210220101 is an apocalyptic number.

It is an amenable number.

1111210220101 is a deficient number, since it is larger than the sum of its proper divisors (40415442107).

1111210220101 is a wasteful number, since it uses less digits than its factorization.

1111210220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142811003.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1111210220101 its reverse (1010220121111), we get a palindrome (2121430341212).

The spelling of 1111210220101 in words is "one trillion, one hundred eleven billion, two hundred ten million, two hundred twenty thousand, one hundred one".

Divisors: 1 31 251 7781 142810721 4427132351 35845490971 1111210220101