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12212020111210 = 25191012089304631
BaseRepresentation
bin1011000110110101010100…
…0111101110011101101010
31121020110100200022201000221
42301231111013232131222
53100040204122024320
641550042524520254
72400201146144353
oct261552507563552
947213320281027
1012212020111210
1139890a7a93507
1214529309b008a
136a77860954aa
143030ca234d2a
151629e17893aa
hexb1b551ee76a

12212020111210 has 64 divisors (see below), whose sum is σ = 23378921913600. Its totient is φ = 4579685568000.

The previous prime is 12212020111199. The next prime is 12212020111211. The reversal of 12212020111210 is 1211102021221.

It is not an unprimeable number, because it can be changed into a prime (12212020111211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39935595 + ... + 40240225.

It is an arithmetic number, because the mean of its divisors is an integer number (365295654900).

Almost surely, 212212020111210 is an apocalyptic number.

12212020111210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12212020111210 is a deficient number, since it is larger than the sum of its proper divisors (11166901802390).

12212020111210 is a wasteful number, since it uses less digits than its factorization.

12212020111210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306847.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12212020111210 its reverse (1211102021221), we get a palindrome (13423122132431).

The spelling of 12212020111210 in words is "twelve trillion, two hundred twelve billion, twenty million, one hundred eleven thousand, two hundred ten".

Divisors: 1 2 5 10 19 38 95 101 190 202 505 1010 1919 2089 3838 4178 9595 10445 19190 20890 39691 79382 198455 210989 304631 396910 421978 609262 1054945 1523155 2109890 3046310 4008791 5787989 8017582 11575978 20043955 28939945 30767731 40087910 57879890 61535462 153838655 307677310 584586889 636374159 1169173778 1272748318 2922934445 3181870795 5845868890 6363741590 12091109021 24182218042 60455545105 64273790059 120911090210 128547580118 321368950295 642737900590 1221202011121 2442404022242 6106010055605 12212020111210