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2102212122 = 234328012909
BaseRepresentation
bin111110101001101…
…0011011000011010
312102111200102220020
41331103103120122
513301131241442
6544333411310
7103044336213
oct17523233032
95374612806
102102212122
1198970a09a
124a8039b36
132766b39ca
1415d2a440a
15c48529ec
hex7d4d361a

2102212122 has 32 divisors (see below), whose sum is σ = 4305216960. Its totient is φ = 683961600.

The previous prime is 2102212109. The next prime is 2102212157. The reversal of 2102212122 is 2212122012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 721204 + ... + 724112.

It is an arithmetic number, because the mean of its divisors is an integer number (134538030).

Almost surely, 22102212122 is an apocalyptic number.

2102212122 is an abundant number, since it is smaller than the sum of its proper divisors (2203004838).

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

2102212122 is a wasteful number, since it uses less digits than its factorization.

2102212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5758.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 2102212122 is about 45849.8868264688. The cubic root of 2102212122 is about 1281.0286575659.

Adding to 2102212122 its reverse (2212122012), we get a palindrome (4314334134).

The spelling of 2102212122 in words is "two billion, one hundred two million, two hundred twelve thousand, one hundred twenty-two".

Divisors: 1 2 3 6 43 86 129 258 2801 2909 5602 5818 8403 8727 16806 17454 120443 125087 240886 250174 361329 375261 722658 750522 8148109 16296218 24444327 48888654 350368687 700737374 1051106061 2102212122