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12230020221020 = 2257362932407001
BaseRepresentation
bin1011000111111000011000…
…0000101100100001011100
31121022011211010201000200122
42301332012000230201130
53100334040134033040
642002221013414112
72401406205434540
oct261760600544134
947264733630618
1012230020221020
1139957a4640418
12145631503a338
136a9394333a44
14303d16a8da20
151631e6b651b5
hexb1f8602c85c

12230020221020 has 48 divisors (see below), whose sum is σ = 29352869477568. Its totient is φ = 4193032512000.

The previous prime is 12230020220987. The next prime is 12230020221079. The reversal of 12230020221020 is 2012202003221.

It is a self number, because there is not a number n which added to its sum of digits gives 12230020221020.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3877520 + ... + 6284520.

It is an arithmetic number, because the mean of its divisors is an integer number (611518114116).

Almost surely, 212230020221020 is an apocalyptic number.

12230020221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12230020221020 is an abundant number, since it is smaller than the sum of its proper divisors (17122849256548).

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

12230020221020 is a wasteful number, since it uses less digits than its factorization.

12230020221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2443310 (or 2443308 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 12230020221020 its reverse (2012202003221), we get a palindrome (14242222224241).

The spelling of 12230020221020 in words is "twelve trillion, two hundred thirty billion, twenty million, two hundred twenty-one thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 36293 72586 145172 181465 254051 362930 508102 725860 1016204 1270255 2407001 2540510 4814002 5081020 9628004 12035005 16849007 24070010 33698014 48140020 67396028 84245035 168490070 336980140 87357287293 174714574586 349429149172 436786436465 611501011051 873572872930 1223002022102 1747145745860 2446004044204 3057505055255 6115010110510 12230020221020