1102102012 has 12 divisors (see below), whose sum is σ = 2104013016. Its totient is φ = 500955440.
The previous prime is 1102102007. The next prime is 1102102021. The reversal of 1102102012 is 2102012011.
It is a self number, because there is not a number n which added to its sum of digits gives 1102102012.
It is a congruent number.
It is an unprimeable number.
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 3 ways as a sum of consecutive naturals, for example, 12523843 + ... + 12523930.
It is an arithmetic number, because the mean of its divisors is an integer number (175334418).
Almost surely, 21102102012 is an apocalyptic number.
It is an amenable number.
1102102012 is a deficient number, since it is larger than the sum of its proper divisors (1001911004).
1102102012 is a wasteful number, since it uses less digits than its factorization.
1102102012 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 25047788 (or 25047786 counting only the distinct ones).
The product of its (nonzero) digits is 8, while the sum is 10.
The square root of 1102102012 is about 33197.9218024261. The cubic root of 1102102012 is about 1032.9372319743.
Adding to 1102102012 its reverse (2102012011), we get a palindrome (3204114023).
Subtracting 1102102012 from its reverse (2102012011), we obtain a palindrome (999909999).
The spelling of 1102102012 in words is "one billion, one hundred two million, one hundred two thousand, twelve".
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