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112122020220 = 223574189149491
BaseRepresentation
bin110100001101011111…
…1100100000101111100
3101201101222100202212120
41220122333210011330
53314111214121340
6123301432002540
711046326306220
oct1503277440574
9351358322776
10112122020220
1143606a59331
1219891530450
13a75b027882
1455d8d62780
152db355e4d0
hex1a1afe417c

112122020220 has 384 divisors, whose sum is σ = 374927616000. Its totient is φ = 24505958400.

The previous prime is 112122020207. The next prime is 112122020273. The reversal of 112122020220 is 22020221211.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 112122020220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 228354175 + ... + 228354665.

It is an arithmetic number, because the mean of its divisors is an integer number (976374000).

Almost surely, 2112122020220 is an apocalyptic number.

112122020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 112122020220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187463808000).

112122020220 is an abundant number, since it is smaller than the sum of its proper divisors (262805595780).

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

112122020220 is a wasteful number, since it uses less digits than its factorization.

112122020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789 (or 787 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 112122020220 its reverse (22020221211), we get a palindrome (134142241431).

The spelling of 112122020220 in words is "one hundred twelve billion, one hundred twenty-two million, twenty thousand, two hundred twenty".