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12112002101020 = 2251374420438723
BaseRepresentation
bin1011000001000000101110…
…0101010010111100011100
31120212220012020210100110011
42300100023211102330130
53041420340014213040
641432102115453004
72360030463115123
oct260201345227434
946786166710404
1012112002101020
11394a742477058
121437478bb7164
1369b20691b243
142dc31ca46aba
151600dab933ea
hexb040b952f1c

12112002101020 has 24 divisors (see below), whose sum is σ = 25620862844304. Its totient is φ = 4809437329536.

The previous prime is 12112002100997. The next prime is 12112002101033. The reversal of 12112002101020 is 2010120021121.

It is a super-2 number, since 2×121120021010202 (a number of 27 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 2210216622 + ... + 2210222101.

It is an arithmetic number, because the mean of its divisors is an integer number (1067535951846).

Almost surely, 212112002101020 is an apocalyptic number.

12112002101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12112002101020 is an abundant number, since it is smaller than the sum of its proper divisors (13508860743284).

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

12112002101020 is a wasteful number, since it uses less digits than its factorization.

12112002101020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4420438869 (or 4420438867 counting only the distinct ones).

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

Adding to 12112002101020 its reverse (2010120021121), we get a palindrome (14122122122141).

The spelling of 12112002101020 in words is "twelve trillion, one hundred twelve billion, two million, one hundred one thousand, twenty".

Divisors: 1 2 4 5 10 20 137 274 548 685 1370 2740 4420438723 8840877446 17681754892 22102193615 44204387230 88408774460 605600105051 1211200210102 2422400420204 3028000525255 6056001050510 12112002101020