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112232121220 = 2255611606061
BaseRepresentation
bin110100010000110001…
…1100100001110000100
3101201200122112111001101
41220201203210032010
53314322410334340
6123320403505444
711052134201332
oct1504143441604
9351618474041
10112232121220
114366311989a
1219902388284
13a777a96bab
145609822b52
152dbd05bc9a
hex1a218e4384

112232121220 has 12 divisors (see below), whose sum is σ = 235687454604. Its totient is φ = 44892848480.

The previous prime is 112232121181. The next prime is 112232121227. The reversal of 112232121220 is 22121232211.

It can be written as a sum of positive squares in 2 ways, for example, as 88776586116 + 23455535104 = 297954^2 + 153152^2 .

It is not an unprimeable number, because it can be changed into a prime (112232121227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2805803011 + ... + 2805803050.

It is an arithmetic number, because the mean of its divisors is an integer number (19640621217).

Almost surely, 2112232121220 is an apocalyptic number.

112232121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112232121220 is an abundant number, since it is smaller than the sum of its proper divisors (123455333384).

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

112232121220 is a wasteful number, since it uses less digits than its factorization.

112232121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5611606070 (or 5611606068 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 112232121220 its reverse (22121232211), we get a palindrome (134353353431).

The spelling of 112232121220 in words is "one hundred twelve billion, two hundred thirty-two million, one hundred twenty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 5611606061 11223212122 22446424244 28058030305 56116060610 112232121220