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20210001112200 = 23352599355715809
BaseRepresentation
bin1001001100001100000011…
…11011111110110010001000
32122120001112201121022221010
410212012001323332302020
510122110040241042300
6110552202450443520
74154060445022254
oct446060173766210
978501481538833
1020210001112200
116492016832919
122324a005935a0
13b37a445bc683
144dc2526b1264
15250a96337a50
hex126181efec88

20210001112200 has 192 divisors, whose sum is σ = 62777209680000. Its totient is φ = 5378483568640.

The previous prime is 20210001112199. The next prime is 20210001112211. The reversal of 20210001112200 is 221110001202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1278377896 + ... + 1278393704.

It is an arithmetic number, because the mean of its divisors is an integer number (326964633750).

Almost surely, 220210001112200 is an apocalyptic number.

20210001112200 is a gapful number since it is divisible by the number (20) 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 20210001112200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31388604840000).

20210001112200 is an abundant number, since it is smaller than the sum of its proper divisors (42567208567800).

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

20210001112200 is a wasteful number, since it uses less digits than its factorization.

20210001112200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19984 (or 19975 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20210001112200 its reverse (221110001202), we get a palindrome (20431111113402).

The spelling of 20210001112200 in words is "twenty trillion, two hundred ten billion, one million, one hundred twelve thousand, two hundred".