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12112122000012 = 2239771667619739
BaseRepresentation
bin1011000001000001001010…
…1110101011001010001100
31120212220111121101211221120
42300100102232223022030
53041421111213000022
641432122041400540
72360033450205636
oct260202256531214
946786447354846
1012112122000012
11394a7a4119a31
1214374b1199150
1369b22570b1a8
142dc330937a56
151600e6478d5c
hexb0412bab28c

12112122000012 has 48 divisors (see below), whose sum is σ = 28307561546880. Its totient is φ = 4030815615232.

The previous prime is 12112122000001. The next prime is 12112122000127. The reversal of 12112122000012 is 21000022121121.

It is a junction number, because it is equal to n+sod(n) for n = 12112121999955 and 12112122000000.

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, 19234039 + ... + 19853777.

It is an arithmetic number, because the mean of its divisors is an integer number (589740865560).

Almost surely, 212112122000012 is an apocalyptic number.

12112122000012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12112122000012 is an abundant number, since it is smaller than the sum of its proper divisors (16195439546868).

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

12112122000012 is a wasteful number, since it uses less digits than its factorization.

12112122000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622390 (or 622388 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12112122000012 its reverse (21000022121121), we get a palindrome (33112144121133).

The spelling of 12112122000012 in words is "twelve trillion, one hundred twelve billion, one hundred twenty-two million, twelve", and thus it is an aban number.

Divisors: 1 2 3 4 6 12 977 1667 1954 2931 3334 3908 5001 5862 6668 10002 11724 20004 619739 1239478 1628659 1859217 2478956 3257318 3718434 4885977 6514636 7436868 9771954 19543908 605485003 1033104913 1210970006 1816455009 2066209826 2421940012 3099314739 3632910018 4132419652 6198629478 7265820036 12397258956 1009343500001 2018687000002 3028030500003 4037374000004 6056061000006 12112122000012