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210112211112012 = 22321119971344121419
BaseRepresentation
bin101111110001100010001111…
…101101001101000001001100
31000112221112100020212102020100
4233301202033231031001030
5210014434302021041022
62022512114532051100
762154051314462226
oct5761421755150114
91015845306772210
10210112211112012
1160a480a7616680
121b6951a2463a90
13903165ba366b1
1439c56b1867416
15194577a28e1ac
hexbf188fb4d04c

210112211112012 has 288 divisors, whose sum is σ = 616257286444800. Its totient is φ = 59690218291200.

The previous prime is 210112211111983. The next prime is 210112211112029. The reversal of 210112211112012 is 210211112211012.

It is a happy number.

210112211112012 is a `hidden beast` number, since 210 + 112 + 211 + 1 + 120 + 12 = 666.

210112211112012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2101122111120122 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9809607439 + ... + 9809628857.

It is an arithmetic number, because the mean of its divisors is an integer number (2139782244600).

Almost surely, 2210112211112012 is an apocalyptic number.

210112211112012 is a gapful number since it is divisible by the number (22) 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 210112211112012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308128643222400).

210112211112012 is an abundant number, since it is smaller than the sum of its proper divisors (406145075332788).

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

210112211112012 is a wasteful number, since it uses less digits than its factorization.

210112211112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34997 (or 34992 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 210112211112012 its reverse (210211112211012), we get a palindrome (420323323323024).

The spelling of 210112211112012 in words is "two hundred ten trillion, one hundred twelve billion, two hundred eleven million, one hundred twelve thousand, twelve".