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211012212100 = 225219111059059
BaseRepresentation
bin1100010010000101001…
…1101101010110000100
3202011122210201000120211
43010201103231112010
511424123111241400
6240534312005204
721150036131434
oct3044123552604
9664583630524
10211012212100
1181542990138
1234a8b690804
1316b8a931201
14a2da8502c4
155750126dba
hex31214ed584

211012212100 has 36 divisors (see below), whose sum is σ = 481996320400. Its totient is φ = 79962521760.

The previous prime is 211012212097. The next prime is 211012212101. The reversal of 211012212100 is 1212210112.

211012212100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (211012212101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55527630 + ... + 55531429.

Almost surely, 2211012212100 is an apocalyptic number.

211012212100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211012212100 is an abundant number, since it is smaller than the sum of its proper divisors (270984108300).

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

211012212100 is a wasteful number, since it uses less digits than its factorization.

211012212100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111059092 (or 111059085 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 211012212100 its reverse (1212210112), we get a palindrome (212224422212).

The spelling of 211012212100 in words is "two hundred eleven billion, twelve million, two hundred twelve thousand, one hundred".

Divisors: 1 2 4 5 10 19 20 25 38 50 76 95 100 190 380 475 950 1900 111059059 222118118 444236236 555295295 1110590590 2110122121 2221181180 2776476475 4220244242 5552952950 8440488484 10550610605 11105905900 21101221210 42202442420 52753053025 105506106050 211012212100