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12100110020 = 22523179146953
BaseRepresentation
bin10110100010011100…
…10000011011000100
31011020021111021110222
423101032100123010
5144240112010040
65320403203512
7605565144455
oct132116203304
934207437428
1012100110020
11514a218829
122418376598
1311aab1641b
1482b03b12c
154ac447bb5
hex2d13906c4

12100110020 has 48 divisors (see below), whose sum is σ = 26663333760. Its totient is φ = 4603712256.

The previous prime is 12100110007. The next prime is 12100110031. The reversal of 12100110020 is 2001100121.

It is a super-2 number, since 2×121001100202 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8864 + ... + 155816.

It is an arithmetic number, because the mean of its divisors is an integer number (555486120).

Almost surely, 212100110020 is an apocalyptic number.

12100110020 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 12100110020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13331666880).

12100110020 is an abundant number, since it is smaller than the sum of its proper divisors (14563223740).

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

12100110020 is a wasteful number, since it uses less digits than its factorization.

12100110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147164 (or 147162 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 12100110020 its reverse (2001100121), we get a palindrome (14101210141).

The spelling of 12100110020 in words is "twelve billion, one hundred million, one hundred ten thousand, twenty".

Divisors: 1 2 4 5 10 20 23 46 92 115 179 230 358 460 716 895 1790 3580 4117 8234 16468 20585 41170 82340 146953 293906 587812 734765 1469530 2939060 3379919 6759838 13519676 16899595 26304587 33799190 52609174 67598380 105218348 131522935 263045870 526091740 605005501 1210011002 2420022004 3025027505 6050055010 12100110020