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12112331222 = 2311113117551
BaseRepresentation
bin10110100011111001…
…11000000111010110
31011021010111011211002
423101330320013112
5144301224044342
65321521143302
7606104055005
oct132174700726
934233434732
1012112331222
1151561057a2
12242048ab32
1311b0504cc4
1482c8dcc3c
154ad55dd32
hex2d1f381d6

12112331222 has 16 divisors (see below), whose sum is σ = 18757330944. Its totient is φ = 5859945000.

The previous prime is 12112331167. The next prime is 12112331239. The reversal of 12112331222 is 22213321121.

It is a junction number, because it is equal to n+sod(n) for n = 12112331194 and 12112331203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 681347 + ... + 698897.

It is an arithmetic number, because the mean of its divisors is an integer number (1172333184).

Almost surely, 212112331222 is an apocalyptic number.

12112331222 is a deficient number, since it is larger than the sum of its proper divisors (6644999722).

12112331222 is a wasteful number, since it uses less digits than its factorization.

12112331222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28715.

The product of its digits is 288, while the sum is 20.

Adding to 12112331222 its reverse (22213321121), we get a palindrome (34325652343).

The spelling of 12112331222 in words is "twelve billion, one hundred twelve million, three hundred thirty-one thousand, two hundred twenty-two".

Divisors: 1 2 31 62 11131 17551 22262 35102 345061 544081 690122 1088162 195360181 390720362 6056165611 12112331222