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121010102112 = 2531260521897
BaseRepresentation
bin111000010110011000…
…0111001111101100000
3102120100101212010002210
41300230300321331200
53440312041231422
6131331414242120
711512512616344
oct1605460717540
9376311763083
10121010102112
1147358058859
121b552056340
13b546550723
145bdd563624
1532339d010c
hex1c2cc39f60

121010102112 has 24 divisors (see below), whose sum is σ = 317651518296. Its totient is φ = 40336700672.

The previous prime is 121010102099. The next prime is 121010102113. The reversal of 121010102112 is 211201010121.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121010102113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 630260853 + ... + 630261044.

It is an arithmetic number, because the mean of its divisors is an integer number (13235479929).

Almost surely, 2121010102112 is an apocalyptic number.

121010102112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121010102112 is an abundant number, since it is smaller than the sum of its proper divisors (196641416184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121010102112 is a wasteful number, since it uses less digits than its factorization.

121010102112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260521910 (or 1260521902 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121010102112 its reverse (211201010121), we get a palindrome (332211112233).

The spelling of 121010102112 in words is "one hundred twenty-one billion, ten million, one hundred two thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 1260521897 2521043794 3781565691 5042087588 7563131382 10084175176 15126262764 20168350352 30252525528 40336700704 60505051056 121010102112