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11210020121020 = 2257281928404247
BaseRepresentation
bin1010001100100000100101…
…0001000110100110111100
31110200200000120120020210011
42203020021101012212330
52432131110122333040
635501451231353004
72234616514564210
oct243101121064674
943620016506704
1011210020121020
113632163128366
1213106b1082764
1363413c656c06
142aa7d4336940
151468e96633ea
hexa32094469bc

11210020121020 has 48 divisors (see below), whose sum is σ = 26913593064960. Its totient is φ = 3842071930944.

The previous prime is 11210020121017. The next prime is 11210020121039. The reversal of 11210020121020 is 2012102001211.

It is a super-2 number, since 2×112100201210202 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13807464 + ... + 14596783.

It is an arithmetic number, because the mean of its divisors is an integer number (560699855520).

Almost surely, 211210020121020 is an apocalyptic number.

11210020121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11210020121020 is an abundant number, since it is smaller than the sum of its proper divisors (15703572943940).

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

11210020121020 is a wasteful number, since it uses less digits than its factorization.

11210020121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28407082 (or 28407080 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11210020121020 its reverse (2012102001211), we get a palindrome (13222122122231).

The spelling of 11210020121020 in words is "eleven trillion, two hundred ten billion, twenty million, one hundred twenty-one thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 2819 5638 11276 14095 19733 28190 39466 56380 78932 98665 197330 394660 28404247 56808494 113616988 142021235 198829729 284042470 397659458 568084940 795318916 994148645 1988297290 3976594580 80071572293 160143144586 320286289172 400357861465 560501006051 800715722930 1121002012102 1601431445860 2242004024204 2802505030255 5605010060510 11210020121020