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121012110120110 = 251117389166355677
BaseRepresentation
bin11011100000111101010011…
…110101100101010010101110
3120212110122102000112022011112
4123200331103311211102232
5111330130300142320420
61105212110153152022
734326556620231626
oct3340752365452256
9525418360468145
10121012110120110
1135615a47424630
12116a4b5a9bb612
13526a515604c51
1421c503599b886
15decc091408c5
hex6e0f53d654ae

121012110120110 has 64 divisors (see below), whose sum is σ = 252248441664960. Its totient is φ = 41309441464320.

The previous prime is 121012110120103. The next prime is 121012110120149. The reversal of 121012110120110 is 11021011210121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82450409 + ... + 83905268.

It is an arithmetic number, because the mean of its divisors is an integer number (3941381901015).

Almost surely, 2121012110120110 is an apocalyptic number.

121012110120110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121012110120110 is an abundant number, since it is smaller than the sum of its proper divisors (131236331544850).

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

121012110120110 is a wasteful number, since it uses less digits than its factorization.

121012110120110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166356101.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 121012110120110 its reverse (11021011210121), we get a palindrome (132033121330231).

The spelling of 121012110120110 in words is "one hundred twenty-one trillion, twelve billion, one hundred ten million, one hundred twenty thousand, one hundred ten".

Divisors: 1 2 5 10 11 17 22 34 55 85 110 170 187 374 389 778 935 1870 1945 3890 4279 6613 8558 13226 21395 33065 42790 66130 72743 145486 363715 727430 166355677 332711354 831778385 1663556770 1829912447 2828046509 3659824894 5656093018 9149562235 14140232545 18299124470 28280465090 31108511599 62217023198 64712358353 129424716706 155542557995 311085115990 323561791765 647123583530 711835941883 1100110092001 1423671883766 2200220184002 3559179709415 5500550460005 7118359418830 11001100920010 12101211012011 24202422024022 60506055060055 121012110120110