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1020021201210 = 2351117181821961
BaseRepresentation
bin11101101011111100000…
…00000101100100111010
310121111212000211211022210
432311332000011210322
5113203000411414320
62100331414155550
7133460035104024
oct16657600054472
93544760754283
101020021201210
11363652415780
1214582b052bb6
137525918756b
143752548b014
151b7ee2be0e0
hexed7e00593a

1020021201210 has 64 divisors (see below), whose sum is σ = 2827695153024. Its totient is φ = 232732108800.

The previous prime is 1020021201181. The next prime is 1020021201223. The reversal of 1020021201210 is 121021200201.

1020021201210 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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, 90905371 + ... + 90916590.

It is an arithmetic number, because the mean of its divisors is an integer number (44182736766).

Almost surely, 21020021201210 is an apocalyptic number.

1020021201210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020021201210 is an abundant number, since it is smaller than the sum of its proper divisors (1807673951814).

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

1020021201210 is a wasteful number, since it uses less digits than its factorization.

1020021201210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181821999.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1020021201210 its reverse (121021200201), we get a palindrome (1141042401411).

The spelling of 1020021201210 in words is "one trillion, twenty billion, twenty-one million, two hundred one thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 11 15 17 22 30 33 34 51 55 66 85 102 110 165 170 187 255 330 374 510 561 935 1122 1870 2805 5610 181821961 363643922 545465883 909109805 1090931766 1818219610 2000041571 2727329415 3090973337 4000083142 5454658830 6000124713 6181946674 9272920011 10000207855 12000249426 15454866685 18545840022 20000415710 30000623565 30909733370 34000706707 46364600055 60001247130 68001413414 92729200110 102002120121 170003533535 204004240242 340007067070 510010600605 1020021201210