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12112022111 = 7231011494999
BaseRepresentation
bin10110100011110111…
…01100101001011111
31011021002220110210112
423101323230221133
5144301134201421
65321510400235
7606101326550
oct132173545137
934232813715
1012112022111
115155a14532
12242036007b
1311b04273b7
1482c85c327
154ad4ec45b
hex2d1eeca5f

12112022111 has 32 divisors (see below), whose sum is σ = 14688000000. Its totient is φ = 9764092800.

The previous prime is 12112022081. The next prime is 12112022137. The reversal of 12112022111 is 11122021121.

It is not a de Polignac number, because 12112022111 - 218 = 12111759967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112022191) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2420390 + ... + 2425388.

It is an arithmetic number, because the mean of its divisors is an integer number (459000000).

Almost surely, 212112022111 is an apocalyptic number.

12112022111 is a deficient number, since it is larger than the sum of its proper divisors (2575977889).

12112022111 is a wasteful number, since it uses less digits than its factorization.

12112022111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5279.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12112022111 its reverse (11122021121), we get a palindrome (23234043232).

The spelling of 12112022111 in words is "twelve billion, one hundred twelve million, twenty-two thousand, one hundred eleven".

Divisors: 1 7 23 101 149 161 707 1043 2323 3427 4999 15049 16261 23989 34993 105343 114977 346127 504899 744851 804839 2422889 3534293 5213957 11612677 17131573 75229951 81288739 119921011 526609657 1730288873 12112022111