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2101112210 = 25235189371
BaseRepresentation
bin111110100111100…
…0110110110010010
312102102121120002202
41331033012312102
513300341042320
6544254043202
7103032105401
oct17517066622
95372546082
102101112210
1198902877a
124a77a9502
132763ba182
1415d099638
15c46d6b75
hex7d3c6d92

2101112210 has 16 divisors (see below), whose sum is σ = 3783652992. Its totient is φ = 840078000.

The previous prime is 2101112197. The next prime is 2101112219. The reversal of 2101112210 is 122111012.

It is a super-2 number, since 2×21011122102 = 8829345038022168200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2101112191 and 2101112200.

It is not an unprimeable number, because it can be changed into a prime (2101112219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21176 + ... + 68195.

It is an arithmetic number, because the mean of its divisors is an integer number (236478312).

Almost surely, 22101112210 is an apocalyptic number.

2101112210 is a deficient number, since it is larger than the sum of its proper divisors (1682540782).

2101112210 is a wasteful number, since it uses less digits than its factorization.

2101112210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91729.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 2101112210 is about 45837.8905491952. The cubic root of 2101112210 is about 1280.8052001596.

Adding to 2101112210 its reverse (122111012), we get a palindrome (2223223222).

The spelling of 2101112210 in words is "two billion, one hundred one million, one hundred twelve thousand, two hundred ten".

Divisors: 1 2 5 10 2351 4702 11755 23510 89371 178742 446855 893710 210111221 420222442 1050556105 2101112210