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112110111220 = 2255605505561
BaseRepresentation
bin110100001101001001…
…0001000100111110100
3101201101010221201210111
41220122102020213310
53314100142024340
6123300324432404
711046123136132
oct1503222104764
9351333851714
10112110111220
1143600264988
1219889548704
13a758718123
1455d7542752
152db24aaaea
hex1a1a4889f4

112110111220 has 12 divisors (see below), whose sum is σ = 235431233604. Its totient is φ = 44844044480.

The previous prime is 112110111193. The next prime is 112110111251. The reversal of 112110111220 is 22111011211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 88210188004 + 23899923216 = 297002^2 + 154596^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 112110111220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2802752761 + ... + 2802752800.

It is an arithmetic number, because the mean of its divisors is an integer number (19619269467).

Almost surely, 2112110111220 is an apocalyptic number.

112110111220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112110111220 is an abundant number, since it is smaller than the sum of its proper divisors (123321122384).

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

112110111220 is a wasteful number, since it uses less digits than its factorization.

112110111220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5605505570 (or 5605505568 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 112110111220 its reverse (22111011211), we get a palindrome (134221122431).

The spelling of 112110111220 in words is "one hundred twelve billion, one hundred ten million, one hundred eleven thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 5605505561 11211011122 22422022244 28027527805 56055055610 112110111220